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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 |
| 4849692 | Device for quantitatively measuring the relative position and orientation of two bodies in the presence of metals utilizing direct current magnetic fields A device for quantitatively measuring the relative position and orientation of two bodies in the presence of metals via measuring the position and orientation of receiving antennae with respect to transmitting antennae utilizing direct current electromagn... | 07/18/1989 |
