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Magician Harry Houdini patented a "Diver's Suit" enabling the wearer to "quickly divest himself of the suit while being submerged and to safely escape and reach the surface of the water."
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| Number | Title | Issue Date |
| 4070847 | Space frame structure A modular, symmetrical space frame structure utilized in the construction of special architectural spanning structures comprises standardized component parts made of corrosion resistant aluminum or high-strength plastic composite for preferred exterior ap... | 01/31/1978 |
| 4055318 | Construction element A construction element which consists of a length of tube, rod or other rolled or extruded section which has two seatings on its periphery. The seatings are each adapted to hold at a predetermined angle to one another and a predetermined angle to the cont... | 10/25/1977 |
| 4039263 | Connector joint A plurality of rods are connected together so as to lie in respective relatively orthogonal planes by means of a joint that has three parts held together by a fastener. This joint is formed with three pairs of holes, each pair of holes lying on a respecti... | 08/02/1977 |
| 4036371 | Support structure for furniture, shelves or the like A support structure for furniture, shelves or the like comprises at least one vertical column and at least one crossbar releasably connected to the vertical column. The vertical column comprises at least two tubular members abutting with end faces thereof... | 07/19/1977 |
| 4027449 | System for constructing spatial structures A system for constructing spatial structures includes a nucleus into which a series of tubes lead, the tubes connecting adjacent nuclei. The nucleus is substantially spherical and hollow and is formed to two helmet-shaped pieces of different heights, havi... | 06/07/1977 |
| 4021127 | Jointing element for a compoundable unit structure, and a structure using said jointing element Jointing element for a compoundable unit structure, comprising a plurality of pegs extending along axes which intersect perpendicularly at one point, the pegs being joined together in proximity to the point of intersection of the axes and having their end... | 05/03/1977 |
| 4011638 | Joint clamp for joining intersecting brace members and method for making same A joint clamp particularly useful in joining braces of the type used temporarily to brace concrete slabs employed in tilt-up construction. The clamp can be installed onto a cylindrical brace without the employment of tools and without access to either end... | 03/15/1977 |
| 3995962 | Building kit for the production of three-dimensional frameworks A building kit for the production of three-dimensional frameworks comprising ball-shaped joints having threaded joint bores and integral formed tube-shaped rods, the end regions of which are formed with a substantially reduced diameter relative to the thi... | 12/07/1976 |
| 3992118 | Scaffolding joint A scaffolding connection between the ends of a plurality of horizontal members and an upright member, in which the end of each horizontal member is provided with oppositely directed tongues projecting laterally therefrom, and the upright member has thereo... | 11/16/1976 |
| 3982841 | Connecting apparatus for frame members An improved connector for removably interconnecting elongate structural members, comprising a sleeve member adapted to be removably fitted to an end of the structural member and holding an internally threaded nut apparatus, a connector bolt one end of whi... | 09/28/1976 |
| 3980408 | Construction element Construction element having a threaded portion for connection to a post and a spool-shaped portion for connection to a tube.... | 09/14/1976 |
| 3973371 | Furniture and wall structural system Apparatus is disclosed for constructing a skeletal framework adapted to support wall, furniture or other structural panels. The apparatus includes a plurality of elongate channel members each having a generally rectangular cross section, one side of which... | 08/10/1976 |
| 3973854 | Connectors for tubular framing members Furniture and room components are assembled in various combinations to form a wide variety of furniture units or room partition units, with the units easily disassembled when desired. The components include vertical support members, horizontal connecting ... | 08/10/1976 |
| 3973855 | Connecting device for panels and tubes A connector for joining at least three tubes and at least two panels in a rectangular structure, comprising a body having at least three and not more than six pins, each for engaging the inside of a tube and extending in a direction either perpendicular t... | 08/10/1976 |
| 3955510 | Shelving apparatus Shelving apparatus including vertical shelving elements and horizontal shelving elements that are releasably interconnected by connectors formed of stiff material. The shape of the connectors depends upon the shelving arrangement to be erected, and there ... | 05/11/1976 |
| 3945600 | Multi-dimensional apparatus for mounting laboratory and experimenting equipment and/or for additionally mounting optical elements A set of connecting elements and mounting elements are provided with split openings and clamping means arranged selected distances apart and at selected orientations so that these elements may be attached to rods to form a multidimensional frame for mount... | 03/23/1976 |
