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"Flight by machines heavier than air is unpractical and insignificant, if not utterly impossible."
Simon Newcomb, astronomer ; Said in 1902, less than two years before the first flight at Kitty Hawk
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| Number | Title | Issue Date |
| 7001124 | Anchor A self-drilling anchor for use in a friable material comprises a body having an axis, a flanged rear end, a drilling front end and a generally cylindrical portion therebetween having an outer surface with a thread disposed thereon, wherein the body forks, beginning ... | 02/21/2006 |
| 6926483 | Joining assembly for joining a pair of structural members A joining assembly for joining a pair of structural members, comprises a bolt having a thread and a nut-like blind rivet adapted to be inserted into mounting holes of the structural members and to be threadingly engaged to each other. One of the mounting holes is ma... | 08/09/2005 |
| 6494653 | Wall anchor The present invention is a wall anchor having a novel finger configuration. This wall anchor has a head and barrel portion with a bore extending therethrough and laterally expandable fingers in general alignment with the bore. Instead of a straight channe... | 12/17/2002 |
| 5137395 | Dynamic earth anchor, and a sleeve therefor An apparatus comprising a sleeve insertable into a borehole, the borehole having a first diameter. A roof pin is inserted into the sleeve, the roof pin having a second outer diameter which is less than the first diameter. The outer surface has a periphera... | 08/11/1992 |
| 4673322 | Slotted anchoring bush An axially extending anchoring bush has a pair of opposite ends with a blind borehole extending axially into the bush from one end with the blind borehole arranged to receive and secure an anchor bolt. The bush has at least three generally axially extendi... | 06/16/1987 |
| 4340330 | Straddling dowel Disclosed is a straddling dowel, of plastic, having a continuous screw insertion hole and several expansion segments that are formed by longitudinal slits in the dowel body and which extend from the circular head portion to the circular foot portion of th... | 07/20/1982 |
| 3951034 | Straddling dowel A straddling dowel includes at least a pair of shell members each having a first contact surface and a second contact surface. The first contact surfaces are disposed in contact with one another and extend in parallel with the axis of the dowel and the se... | 04/20/1976 |
