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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 |
| 7194809 | Quick release blade and knife A knife blade having a cutting edge with a first end and a mounting edge opposite the cutting edge. Typically the first end will be a point, but other configurations are possible. In addition, the knife blade has a first attachment slot extending from the mounting e... | 03/27/2007 |
| 6334254 | Wide blade scraper In order to ergonomically induce relative sliding between a base and a cover member wherein the base is slidably mounted on the base and wherein the two members go to make a wide blade scraper body, a cam bearing wheel is mounted on the base and arranged ... | 01/01/2002 |
| 5996231 | Scraping tool with replaceable blade and controlled quick-release clamp A scraping tool employing a sharp-edged blade such as a wallpaper shaving blade, utility or razor blade; comprising an integral body and handle, a controllable quick-release blade clamp and latching level to lock and unlock the clamp for access to the bla... | 12/07/1999 |
| 5735051 | Knife with replaceable blade A utility knife for use with a flat blade having a pair of opposite faces has an elongated base part formed with an outwardly directed rear support surface, an outwardly directed front support surface separated longitudinally therefrom, and an inwardly di... | 04/07/1998 |
| 5459928 | Cabinet scraper holder A holder for conventional rectangular cabinet scrapers having a body shaped like an open scroll, pivoting structures within each scroll-like end of the body to grasp a scraper blade along a substantial portion of its entire end, and a centrally located pa... | 10/24/1995 |
| 4817285 | Razor blade holder A razor blade holder including a longitudinal slot for receiving a razor blade, first and second offset finger gripping elements and a clamping element provided within the slot for clamping a razor blade in the slot of the holder. The holder grips the bla... | 04/04/1989 |
| 4769913 | Fuzz remover A fuzz remover wherein a blade having cutting edges at side edge portions thereof is held between a fuzz remover body having at both side edge portions thereof a plurality of teeth each of which projects therefrom in upwardly-inclined state and a bottom m... | 09/13/1988 |
| 4373263 | Molded implant removal knife Animal implantates may be removed by a knife that permits the insertion and removal of blades without the manipulation of fasteners. Such a knife may be inexpensively manufactured by molding two relatively simple pieces that can be fitted together to hold... | 02/15/1983 |
| 4336725 | Apparatus for reproducing coded contour shapes in saw blades Apparatus is provided herein for accepting a severed end of a saw blade into a clamping and squaring mechanism over a contoured die set. The die set is located immediately below a plunger slidably mounted through a supporting bridge so that force imparted... | 06/29/1982 |
| 4100636 | Cutter A grass edge trimmer includes a blade having at least one longitudinal cutting edge mounted on a handle by means of a pair of clamping portions. The clamping portions are located on opposite sides of the blade and engage the same along but spaced from sai... | 07/18/1978 |
