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In 1942, Hollywood actress Hedy Lamarr and avant-garde composer George Antheil received US Patent 2,292,387 for a frequency-hopping radio system synchronised by a perforated paper roll borrowed from a player piano, a technique the Navy filed away as unworkable and which now underpins every Wi-Fi router, Bluetooth earbud, and GPS receiver on Earth.

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On August 11, 1942, the US Patent Office issued Patent No. 2,292,387 to Hedy Kiesler Markey, the legal name of…