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 |
| 5644122 | Grin optical system An optical system includes graded refractive index ("GRIN") optical elements. An objective optical element and an ocular optical element, each including at least one GRIN element, are located in an optical path which is substantially voidless. The optical... | 07/01/1997 |
