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Walt Disney was no Mickey Mouse inventor. He devised a serious animation camera which he patented. With the device, his company created "Snow White".
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| Number | Title | Issue Date |
| 4146880 | Method of finding the address of a zone indicated on a video screen by a light pen On a video screen displaying lines of characters, a character position, wher displaying a character or blank, is found by means of a search performed after a light pen indicates the desired position. The search is performed by brightening the screen phos... | 03/27/1979 |
