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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 |
| 7216569 | Screwdriver handle A screwdriver handle comprises a base portion; a pair of arms pivotally connected to the base portion; a locking sleeve mounted around the base portion and adapted to engage the pair of arms; a spring member mounted around the base portion and adapted to engage the ... | 05/15/2007 |
| 7036398 | Ratchet opener A ratchet opener comprises a rod body; a ratchet device having a seat; a top surface of the seat having two axial grooves; each groove being installed with a spring and a ratchet block; an adjusting sheet placed above the seat; and a ratchet sheet being installed ab... | 05/02/2006 |
| 6922870 | Torque magnifying handle for driving tool A handle which is sized for gripping and for holding a drive tool wherein the drive-tool handle can be alternately positioned in the body of the handle for achieving varying amounts of torque. As assembly involving the handle and the drive tool. ... | 08/02/2005 |
| 5170850 | Ratchet operated device for setting a post having an auger attached at one end Ratchet operated device for setting a post having a helical auger thread disposed at one end. The ratchet operated device has an annular sleeve with an annular series of teeth disposed on its exterior surface. The annular sleeve is provided with a fastene... | 12/15/1992 |
| 4529071 | Ratcheting tool with improved cam shifter means A ratcheting tool has a handle mounted on a ratchet housing. The ratchet housing has a blind axial bore formed therein. A driven shank has a rearward portion nested partially in the bore, and a ratchet is formed externally on the rearward portion of the s... | 07/16/1985 |
