LYCOS RETRIEVER 
Hedy Lamarr: Fritz Mandl
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Hedy Lamarr married Fritz Mandl, an Austrian munitions magnate. Lamarr was signed by MGM and migrated to the United States of America in 1937. This is when Hedy adopted her stage name, which she claimed to be an homage to the 1920s screen beauty Barbara La Marr.
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Hedy Lamarr married Fritz Mandl, a munitions manufacturer and a Nazi sympathizer. He was a very jealous husband and tried to buy back all the copies of the film that he could. It was said that even Benito Mussolini had a copy that he refused to sell.
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Hedy Lamarr was married and divorced six times. Her husbands were Fritz Mandl, Gene Markey, Sir John Loder (whom she had one son with), Ted Staufer, W. Howard Lee, and Lewis J. Boles. This all happened in a time span from 1933-1965. Most women think that it is amazing that she only had one child out of all six marriages.
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According to a number of reports, Austrian-born silver-screen actress Hedy Lamarr invented spread spectrum well before the digital communications age. Before fleeing Nazi-occupied Austria and leaving then-husband, Fritz Mandl (who sold weapons to Adolf Hitler), Lamarr came up with the idea of a radio-controlled torpedo but discovered the signal could be too easily jammed.
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Four years later, when Mandl started collaborating with the Nazis, Lamarr escaped to London. There she met Louis B. Mayer from MGM, who made it possible for her to go to Hollywood. But she didn’t forget what she had learnt while she was at the side of the first of her husbands, particularly the confidential talks about the research Mandl was carrying out in a very delicate field: long distance weapons control.
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Following the outbreak of World War II, Lamarr, a passionate opponent of the Nazis, wanted to contribute more to the allied effort. As Mrs. Fritz Mandl, she had closely observed the planning and discussions that went into attempting to design remote-controlled torpedoes. These never went into production, because the radio-controlled guidance system was too susceptible to disruption. She got the idea of distributing the torpedo guidance signal over several frequencies... protecting it from enemy jamming. The only weak point was how to employ the synchronization of the signal's transmitter and receiver.
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Fritz Mandl