"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 |
| 6685359 | Method and apparatus for preloading the outer race of a tapered roller bearing in a vehicle axle differential A pair of threadably engaged sleeves are supported around a shaft, and engage the outer races of a pair of shaft mounted tapered roller bearings to apply a tensile preload on the outer races.... | 02/03/2004 |
| 5577842 | Absorbent oil barrier for hydrodynamic bearing A hydrodynamic bearing assembly including a shaft and surrounding bushing which define a journal, the shaft and bushing defining at the end thereof which is open to the ambient atmosphere a shelf-like surface. An absorbent washer, preferably formed of a v... | 11/26/1996 |
| 4896596 | Lubrication system for print hammer mechanisms The disclosure describes a passive lubrication system for use in a high speed print hammer mechanism to provide continuous lubrication to all print hammer elements. Channels are formed along the length of a pivot pin and filled with a porous material havi... | 01/30/1990 |