Price: $35,000
German-born theoretical physicist; enunciated the Theory of Relativity.
Document Signed, two pages, quarto, New York, December 5, 1936. Also signed by Gustav Bucky. Together with a copy of the patent.
Albert Einstein signs a patent assignment for “A light intensity self-adjusting camera”-an invention tangentially related to his theory of relativity: “In consideration of the sum of One Dollar and other good and valuable consideration, the receipt of which is hereby acknowledged, the undersigned, Gustav Bucky, of Manhattan New York, and Albert Einstein, of Princeton New Jersey, hereby sell, assign, transfer, convey and set over unto Roefing Research Corporation of the State of New York, all their right, title, and interest in, to or under United States Letters Patent No. 2058562 of October 27, 1936, for a Light Intensity Self-Adjusting Camera; together with the right to damages and profits due or accrued arising out of past infringement upon said Letters Patent and the right to sue for and recover the same; the same to be held and enjoyed by said Roefing Research Corporation, its successors and assigns, to the full end of the term for which this assignment and sale not been made ”
Albert Einstein’s patent for the light intensity self-adjusting camera is an example of the physicist’s application of science to daily life. His other patents were for a noiseless refrigerator and hearing aid. The German radiologist Gustav Bucky was Einstein’s good friend. In 1913 Bucky applied for a patent for his grid diaphragm. “Today, the device named after him is still used in the radiation path between the subject and the viewer or Rntgen film; its purpose is to isolate the primary rays originating in the generator film from the distracting secondary rays which are usually produced in the radiated tissue” [www.swissray]
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