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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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4.7 out of 5 stars rating1.6K Total Reviews
1,567 Reviews
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5 out of 5 stars rating
By L.27 January 2023 • Verified Purchase
Puzzle, 27.94 cm x 35.56 cm, 252 pieces
Zazzle Reviewer Program
Was exactly what I ordered. Thanks Zazzle! Picture was nice clear.
5 out of 5 stars rating
By Kelly K.18 September 2021 • Verified Purchase
Puzzle, 27.94 cm x 35.56 cm, 252 pieces
Zazzle Reviewer Program
Absolutely nothing but love! It turn out amazing! I got this for my father for his birthday of his mum and dad who have passed. It look exactly like the picture!
5 out of 5 stars rating
By T.11 April 2023 • Verified Purchase
Puzzle, 27.94 cm x 35.56 cm, 252 pieces
Zazzle Reviewer Program
I created this puzzle online as a gift for my son-in-law and it turned out awesome! Creating it couldn't have been easier or more fun. The printing is clear and of good quality. I would highly recommend Zazzle.
from zazzle.com (US)
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Product ID: 116764609981208439
Added on 15/10/20, 7:52 pm
Rating: G
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