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Hedy Kiesler Markey G. Antheil US Patent 2292387 Jigsaw Puzzle
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Hedy Kiesler Markey G. Antheil US Patent 2292387 Jigsaw Puzzle
Let others know of one particular woman's contributions to our modern wireless world with this "Secret Communication System" jigsaw puzzle featuring U.S. Patent 2,292,387 as filed by Hedy Kiesler Markey and composer George Antheil. Markey's and Antheil's frequency-hopping system was designed to jam radio-controlled torpedoes by continually changing the radio signals sent to them. This system, similar to how piano rolls work, shares some concepts with modern spread-spectrum communication technology as used in today's wireless telephones (GPS, Wi-Fi, and Bluetooth). Let your technological pioneering spirit shine with this jigsaw puzzle the next time you surf the web!
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4.6 out of 5 stars rating1.6K Total Reviews
1,566 Reviews
Reviews for similar products
5 out of 5 stars rating
By C.April 1, 2020 • Verified Purchase
Puzzle, 27.94 cm x 35.56 cm, 252 pieces
Zazzle Reviewer Program
High quality, with interesting shapes for the pieces. The picture looks great, and it was just one I took with my phone!
5 out of 5 stars rating
By Susan L.June 16, 2019 • Verified Purchase
Puzzle, 27.94 cm x 35.56 cm, 252 pieces
Zazzle Reviewer Program
Loved it and she will just love this gift! This one came out excellent!
5 out of 5 stars rating
By S.October 23, 2021 • Verified Purchase
Puzzle, 20.32 cm x 25.4 cm, 110 pieces
Zazzle Reviewer Program
I gave this as a gift for my niece. It is such a great personal gift. She absolutely loved it. Definitely 5 star rating. Quality was perfect. Definitely 5 star rating
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Product ID: 116764609981208439
Designed on 2020-10-15, 7:52 PM
Rating: G
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