Did You Know...
...that when IBM conducted a market study of Chester Carlson's invention in 1959, the company concluded that it would take only 5000 units of his new product to saturate the market? IBM therefore declined to be part of the new product introduction. Too bad for IBM. Carlson's invention was the xerography process, and his new product was the beginning of the Xerox Corporation. It is estimated that every day, worldwide, 3,000,000,000 copies are made!!
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| Number | Title | Issue Date |
| 5263348 | Cylinder lock A cylinder lock for use in motor vehicles and elsewhere has a case for a rotatable and axially movable sleeve-like guide which receives a rotatable cylinder having a keyhole and being locked to the guide by tumblers when the key is withdrawn. A detent is ... | 11/23/1993 |
| 4509093 | Electronic locking device having key and lock parts interacting via electrical pulses Disclosed is an electronic locking device including electrically interacting key part and lock part each including electronic data processor with an inner code which is particular for a pair of key and lock units which belong one to another. To increase t... | 04/02/1985 |
