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"Everyone acquainted with the subject will recognize it as a conspicuous failure."
Henry Morton, president of the Stevens Institute of Technology ; Said in 1880 about the light bulb
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| Number | Title | Issue Date |
| 4987752 | Hide skiving machine A hide skiving machine adapted to skive a hide in one pass constituted by a frame which supports, at its sides, a rotatable support cylinder upon which the hide is fed and is held in place by a slidable presser roller. A lower oscillating frame having a r... | 01/29/1991 |
| 4381655 | Machine for treating hides or the like A tanning machine wherein a pressure roller urges one side of a hide or skin against the blades of an elongated rotary severing device has a grinding unit which treats the blades of the severing device and is mounted in the frame of the tanning machine. T... | 05/03/1983 |
| 4331011 | Automatic roughing machine A multi-station machine for marginal roughing and toe scouring of shoe bottoms has a turret arrangement, carrying a plurality of shoe supports. At a marginal roughing station two rotary roughing tools operate along opposite marginal portions, during movem... | 05/25/1982 |
