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"That’s an amazing invention, but who would ever want to use one of them?"
President Rutherford B. Hayes ; Said in 1876, after Alexander Graham Bell demonstrated the telephone to him at the White House
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| Number | Title | Issue Date |
| 6941662 | Shaving head assembly for a lint shaver A shaving head assembly for a lint shaver includes a transmission shaft rotatably received inside the casing and having a V-shaped cutout defined in a distal end of the transmission shaft. The blade assembly has a blade seat with a V-shaped extension extending from ... | 09/13/2005 |
| 6381853 | Rotary cutting device having adjustable tension A tensioning means for a rotary handpiece is described in which the handpiece (2) is characterized in having a planar rotating blade (12) provided with a plurality of teeth and a plurality of cutting elements (22) capable of moving reciprocally in a linea... | 05/07/2002 |
| 4631826 | Handpiece for shearing equipment According to one embodiment of the present invention there is provided a handpiece for shearing wool from sheep, but not restricted to this use, comprising a body portion, a cutting element resiliently mounted to the body portion, the body portion having ... | 12/30/1986 |
| 4037323 | Grass trimming device The trimming device has a blade driven by a shaft to have each end pass over cutting teeth at the forward edge of a circular cutting plate. The drive mechanism may be a belt or a gear train driven by a motor which is mounted on a frame to which a top and ... | 07/26/1977 |
| 3945116 | Rotary shear with improved cutting assembly A portable hand-held shear for cutting grass and the like comprising a housing enclosing an electric motor and forming a handle. The motor includes an output rotary shaft which, through a gear train, drives a rotary blade. A stationary bed knife assembly ... | 03/23/1976 |
