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HEDY LAMARR 8x10 PICTURE BEAUTIFUL ACTRESS COLOR PHOTO
- Item No : 310170015122
- Condition : No Condition Info
- Brand : No brand Info
- Seller : abcproductions
- Current Bid : US $12.95
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* Item Description
- Hedy Lamarr and composer George Antheil received U.S. patent #2,292,387 for their Secret Communication System. This early version of frequency hopping used a piano roll to change between 88 frequencies and was intended to make radio-guided torpedoes harder for enemies to detect or jam.
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