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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!
Customer Reviews
4.6 out of 5 stars rating1.5K Total Reviews
1,547 Reviews
Reviews for similar products
5 out of 5 stars rating
By J.2 January 2019 • Verified Purchase
Puzzle, 27.94 cm x 35.56 cm (11" x 14"), 252 pieces
Zazzle Reviewer Program
Sir,A great product of quality,which really was, jolly good as a Christmas present for my brother in-law ,who is a mushroom expert here in England.
The design,size and convenience of such a present ,was exactly what I was looking for.
He was at first "puzzled"as to the what the Christmas present could be,but was delighted by the contents.He was certainly very happy and made from a fun present.
Just right.Thank you very much Zazzle I will order from you again.
Yours Sincerely Mr J.E. O'Shea . Wonderful Printing . Excellent Quality.First Class Item.
3 out of 5 stars rating
By Anonymous24 October 2024 • Verified Purchase
Puzzle, 27.94 cm x 35.56 cm (11" x 14"), 252 pieces
Nice compact box, however, the picture of the jigsaw on the box is literally no more than 4 x 3 inches and as this is supposed to be a gift for someone to make the jigsaw based on the picture - I'm not sure how they are supposed to do that with such a small picture?! Can I suggest the box contains a larger picture of the jigsaw for those less able to see the extremely small details on the box sticker.
5 out of 5 stars rating
By K.20 February 2019 • Verified Purchase
Puzzle, 27.94 cm x 35.56 cm (11" x 14"), 252 pieces
Zazzle Reviewer Program
Really nice gift idea. Smaller that I thought but thats my fault for not measuring first. Great to put a smile on someones face ;). Great quality. would order again
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Product ID: 116764609981208439
Created on 15/10/2020, 19:52
Rating: G
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