Celebrity Inventors
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 |
| 7370426 | Cutting tee square The apparatus includes a first plate for supporting the first surface of the article adjacent to the edge part of the article, a second plate extending from one end of the first plate in order to support the second surface of the article adjacent to the edge part of... | 05/13/2008 |
| 7263785 | Tape measure clip for improving measurement accuracy Provided is a caliper extender, which fits over a tape measure blade, enabling accurate measurements to be taken of an inside dimension. Extender slides along blade and is positioned against one wall of the inside dimension. Blade is then repositioned flat against e... | 09/04/2007 |
| 7251903 | Method for spacing guides on fishing rods and chart for spacing same A chart for locating guides on a fishing rod comprising a plurality of side by side lanes each having a vertical portion and in a predetermined plane and arcuate lane portions of different radii and curved through an arc of about ninety degrees (90°) from said pred... | 08/07/2007 |
| 7204034 | Method for spacing guides on fishing rods and chart for spacing same A chart for locating guides on a fishing rod comprising a plurality of side by side lanes each having a vertical portion and in a predetermined plane and arcuate lane portions of different radii and curved through an arc of about ninety degrees (90°) from said pred... | 04/17/2007 |
| 7159332 | Tape measure clip for improving measurement accuracy Provided is a caliper extender (100), which fits over a tape measure blade (124), enabling accurate measurements to be taken of an inside dimension (142). Extender (100) slides along blade (124) and is positioned against one wall o... | 01/09/2007 |
| 6591511 | Framing square An improved framing square having integral features for automating the marking and cutting of angles. The square contains two sliding carriages--one in the body and one in the blade. Each carriage has a deployable pin. In order to set an angle, the user f... | 07/15/2003 |
| 6430827 | Spirit level A spirit level employs an elongated housing having a rectangular cross-sectional outline and provided with registering elongated slots in its front and rear walls. At least one follower of the level has a main portion slidably installed in the housing and... | 08/13/2002 |
| 5960554 | Stud layout template A stud layout template for marking locations for the placement of studs on a floor plate or a ceiling plate using center lines on the respective floor or ceiling plate. The stud layout template includes a plate having a main portion and an end portion out... | 10/05/1999 |
| 5820183 | Graduated tool handle An improved graduated tool handle for providing ready measurement of selected regions of a work area. Improved graduated tool handle (10) is readily adaptable for use with various implements such as rakes, shovels, and post-hole diggers. Improved tool han... | 10/13/1998 |
| 5189801 | Speed guide A guide facilitating the movement of a carpentry tool, such as a tape rule or hand-held power saw, across an article includes a U-shaped portion which may be compressed with the fingers about an edge section of the tool and a fence portion joined to the a... | 03/02/1993 |
| 5083380 | Duct notching template apparatus The disclosure relates to a duct notching template apparatus having slidably positionable and settable end templates and a center template. The end templates have hooked or tabbed edges for engaging the edge of a piece of sheet metal to be scribed for not... | 01/28/1992 |
| 4660295 | Metric measuring device for postage stamps A hand-held measuring device including an elongated base having a pair of opposed parallel metric measuring scales on the upper face thereof, a slider slidably mounted on the base having a linear indicator perpendicular to the axis of the base and a holde... | 04/28/1987 |
| 4644663 | Measuring device A device preferably in the form of a T-square having an elongated body and a perpendicularly arranged head portion and further including a plurality of staggered, offset scales extending along the length of said body from the head portion towards a distal... | 02/24/1987 |
| 4355472 | Drafting aid A drafting aid particularly useful for association with T-squares and the like wherein a vertical or normal datum point is easily obtained and wherein the drafting aid is movable about the extent of the T-square or other linear edge with which the device ... | 10/26/1982 |
| 4291468 | Mechanical point locator A mechanical point locator and distance divider provides for quick and reliable division of a distance into an integral fraction of the distance, being useful for drafting, with maps or charts, in the construction industry and around the home. Leading and... | 09/29/1981 |
| 3974568 | Drivers log device A device for assisting a truck driver in rapidly computing work hours from a log book, comprising a thin, flat, elongated plate of transparent material having a pair of indexing members movably mounted thereon for alignment with certain figures on a drive... | 08/17/1976 |
