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 |
| 6049033 | Page turning device A page turning device (10) is provided having a motor housing (12), an activator switch (14) and a book platform (16). A motor (18) is carried within the motor housing (12) and includes a drive shaft (20) that carries a spring arm (24) that, in turn, carr... | 04/11/2000 |
| 4084468 | Electric page turner This disclosure pertains to an arm adapted to be installed below a page in a book. The arm is secured to a shaft that is biased to urge the arm in a position which causes the page to be turned. A solenoid coil, operated by a battery and foot switch, relea... | 04/18/1978 |
