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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 |
| 7322985 | Surgical saw for cutting off cheek bones The surgical saw according to the present invention comprises an arm fixed by mounting the rear end portion thereof in a jaw of a handle; and a double saw blade part connected with the front end portion of the arm and having two saw blades arranged side by side in a... | 01/29/2008 |
| 7200940 | Tool for surface burring A tool for burring the surface of a material. The tool has two sets of oppositely facing toothed blades which are made to move towards each other when the tool is pressed against a surface. Each tooth planes a shallow groove into the surface which results in hook-li... | 04/10/2007 |
| 6874400 | Cutting tool unit and assembly, and machine and associated cutting method A rotatable cutting tool unit of a tool assembly for a cutting machine that is used in conjunction with an associated method of cutting provides several novel aspects. The tool arrangement, which includes two tool units, includes first and second disk-shaped tools r... | 04/05/2005 |
| 5946990 | Drain assembly removal tool and method A drain assembly removal tool and method are disclosed for removing a drain assembly, including providing a hand grip, two prongs extending from the hand grip, and cutting means attached to at least one prong for cutting into a strainer plug body of a dra... | 09/07/1999 |
| 5867913 | Four square corner hole saw My interest was aroused by the lack of any power tool to help the electrical contractor cutting rectangular holes through walls for his wall boxes for switches and receptacles. I started making a model in 1992 only to find out there was no parameters to f... | 02/09/1999 |
| 5797189 | Tool for cutting rectilinear openings for electrical outlet boxes in sheet material A cutting tool and associated positioning templates locate and cut rectangular junction box holes in dry wall or similar sheet material forming structural surfaces. Templates defining a medial positioning slot and providing a spaced pair of positioning pi... | 08/25/1998 |
| 5456011 | Cutting tool A cutting tool comprising two cutting members positioned side by side and each having a toothed cutting edge of substantially the same shape. The cutting member being mounted on respect eccentrics of a drive shaft coupled to a motor. The cutting member be... | 10/10/1995 |
