Mark Twain (Samuel L. Clemens) received Patent No. 121,992 for "An Improvement in Adjustable and Detachable Straps for Garments." He later received two more patents: one for a self-pasting scrapbook and one for a game to help players remember important historical dates.
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| Number | Title | Issue Date |
| 7967656 | Multi-purpose modular unit The present invention provides a multi-purpose modular unit, including multiple blocks and adapters. The blocks are provided with multiple side faces and embedded tap holes. The adapters are screwed into the corresponding tap holes of two adjacent blocks. With this ... | 06/28/2011 |
| 7371147 | System for realising complex assemblies The invention concerns a system for realizing complex constructions, characterized in that it comprises a plurality of basic elements, and a plurality of constructive and/or figurative elements, that can be coupled with said basic elements, each basic element being ... | 05/13/2008 |
| 7288917 | Transmitter for radio-controlled toy A mobile toy is described. The mobile toy includes a wheel assembly having a hubcap for removably engaging a wheel of the wheel assembly. The mobile toy may also include a transmitter having a charging pad for charging of a radio-controlled embodiment of the toy. Th... | 10/30/2007 |
| 7080492 | Channel joint structural system A modular channel joint structural system comprising an interlocking system with matching extensions. The extensions slide into matching grooves or channels and are bottled together with only one bolt per joint. In a typical embodiment, aligned members with transver... | 07/25/2006 |
| 7037210 | Golf alignment device At least four alignment members, namely, an aim member 11, a guide member 12, and two positioning members 13, 14, may be arranged in various configurations to assist the golfer with putts and with wood and iron shots. A connector 25 is di... | 05/02/2006 |
| 6957996 | Toy car kit A mobile toy is described. The mobile toy includes a wheel assembly having a hubcap removably engaging a wheel of the wheel assembly. The mobile toy may also include a transmitter having a charging pad for charging of a radio-controlled embodiment of the toy. The tr... | 10/25/2005 |
| 6609336 | Modular units, modular structures having modular units, and method for constructing modular structures A modular unit system for constructing a modular structure comprises different modular unit sets each having identical modular units. The modular units of each modular unit set has connecting surfaces each for connection to a corresponding connecting surf... | 08/26/2003 |
| 6460850 | Cube puzzle A puzzle forming a cube when assembled includes a plurality of hexahedron blocks, each block defining at least one hole therein which passes completely through the block. A plurality of fastening elements of substantially identical dimensions with respect... | 10/08/2002 |
| 6073404 | Model building A modular building model is provided. The modular building model includes a base and a lower level module disposed on and engaged with the base. An upper level module is disposed on and engaged with the lower level module. The base includes a releasable s... | 06/13/2000 |
| 6014842 | Modular units, modular structures having modular units, and method for constructing modular structures A modular unit system for constructing a modular structure comprises different modular unit sets each having a identical modular unit. The modular units of each modular unit set has connecting surfaces each for connection to a corresponding connecting sur... | 01/18/2000 |
| 5816882 | Construction toy kit A construction toy kit comprises a plurality of construction elements and fasteners adapted for forming structures of various forms. The construction elements comprise straight flat strip, angled flat strips of various configurations, plates of various co... | 10/06/1998 |
| 5776560 | Units for building ornamental article A plurality of building members and a plurality of sheet members for connection thereof are provided. Each of the plurality of building members includes a main body portion and a coupling portion to be fitted on an end of the main body portion. One of the... | 07/07/1998 |
| 5645463 | Toy building set A toy building set has primary building members having a first type of coupling that includes studs and complementary parts for mating with the studs. The building set also includes secondary and tertiary building members. The secondary building members h... | 07/08/1997 |
| 5498188 | Child-constructable toys that are assembled using a system of color-coordinated components and tools A child-constructable toy including a set of components, each component having a characteristic color, each component further having a plurality of edges bearing other characteristic colors; a tool-actuateable coupling mechanism having a same characterist... | 03/12/1996 |
| 5152530 | Bolt block puzzle apparatus A puzzle having a plurality of bolts, a plurality of nuts and a plurality of blocks. The plurality of bolts includes having each bolt with a first end with a head, and a second end with threads, with each bolt having a size different from another bolt. Th... | 10/06/1992 |
| 5078354 | Sectional decoration block This invention relates to sectional decoration blocks of the type used as display stands for the display of electrical household appliances or ornaments in houses, hotels or restaurants. The block display stand of this invention is easily assembled even b... | 01/07/1992 |
| 5069646 | Toy sawable wood Briefly stated, and in accordance with a presently preferred aspect of this invention, toy sawable wood includes a first simulated wood member; a second simulated wood member releasably attachable to the first simulated wood member for forming a simulated... | 12/03/1991 |
| 5049104 | Connecting means for a toy building set A connecting system for a toy building set comprises a first coupling part (11) and a second coupling part (12, 13), which are provided on their respective ones of a pair of building elements, adapted to be interconnected, and are formed with respective c... | 09/17/1991 |
| 5009599 | Sculpture apparatus An apparatus is set forth for the aesthetic assemblage of components including plate members and elongate rods. The plate members include parallel, orthogonal, and angulated side surfaces in containing various apertures therethrough including orthogonally... | 04/23/1991 |
| 4903451 | Modular system and fastening devices therefor A modular system includes a plurality of building units, each having at least one countersunk aperture for alignment with a countersunk aperture of another building unit; and fastening devices for securing the building units together in any of a plurality... | 02/27/1990 |
| 4795393 | Rectangular link construction toy A construction toy including a plurality of rectangular plastic links which may be joined together to form three dimensional models. The links are made of injection molded plastic in various lengths, but of uniform width and thickness "t". Rectangular slo... | 01/03/1989 |
| 4781644 | Assembly kit for toy or the like An assembly kit for use as a toy or the like including plurality of rod elements, each having a pair of half portions and fasteners for fixing together the half portions, the half portions having ends in the axial direction and first and second recessed p... | 11/01/1988 |
| 4775350 | Take apart toy structure A toy construction kit is provided which includes, as basic building elements, a plurality of tubular elements having transverse throughbores routinely spaced along their length and routinely spaced about their periphery at relative displacements of 30, 4... | 10/04/1988 |
| 4775349 | Take apart toy structure A toy construction kit is provided which includes, as basic building elements, a plurality of tubular elements having transverse throughbores routinely spaced along their length and routinely spaced about their periphery at relative displacements of 30, 4... | 10/04/1988 |
| 4702476 | Game set of dyadic articles A game set includes a plurality of individual game articles, with each article including two companion playing pieces. The pieces mate with each other, but not with the pieces of other articles in the set, to form the article. The pieces of each article a... | 10/27/1987 |
| 4620747 | Custom construction system A Custom Construction System consisting of a novel structural member in combination with as required, spreader members and equalizer members which are assembled together by various nuts, bolts and other hardware to produce various pieces of furniture and ... | 11/04/1986 |
| 4589853 | Construction set, preferably a toy set A constructional toy set has building members and coupling members having dimensions which are equal to, multiples of, or specific fractions of a basic unit size, have a basic thickness or a multiple thereof, have through holes of basic hold diameter or m... | 05/20/1986 |
| 4389808 | Bolt-together building set for children A set of building components for children comprising a multiplicity of generally hollow blocks having at least one open face and at least one aperture through each of a plurality of closed faces thereof, and a plurality of nut and bolt fasteners adapted t... | 06/28/1983 |
| 4346885 | Water-and/or sandbox construction There is disclosed a water-and/or sandbox construction comprising an integrally moulded body having side walls and inclined upper edges, the bottom of which is formed with shaped protrusions or recesses for releasable engagement with complementarily shape... | 08/31/1982 |
| 4186515 | Toy horse vehicle A toy assembly capable of being configured into a simulated horse is provided. The body member contains a pivotal connection that is rotatively attached to a joint assembly configured and positioned on the body member to represent respectively the withers... | 02/05/1980 |
| 4183154 | Instructional chair A bolted together disassemblable instructional chair having color coded and number coded or letter coded joint portions and with joining portions provided with respectively different numbers and sizes of bolt openings fitted with corresponding bolts and n... | 01/15/1980 |
| 3982754 | Apparatus for constructing structures, particularly for children's playgrounds and gardens Apparatus for constructing structures, particularly for children's playgrounds and gardens, includes a number of different types of elements, namely first elements in the form of logs having spaced parallel bores, second elements in the form of bars which... | 09/28/1976 |