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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 |
| 5066377 | Method and device for producing a controllable and reproducible temperature gradient and use thereof A method and a device for producing a controllable and reproducible temperature gradient in a predetermined direction of heat-conducting plates for the separation of mixtures of substances in sheet-shaped separating media wherein one edge of a plate is he... | 11/19/1991 |
