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Hedy Kiesler Markey G. Antheil US Patent 2292387 Notebook
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Hedy Kiesler Markey G. Antheil US Patent 2292387 Notebook
Let others know of one particular woman's contributions to our modern wireless world with this "Secret Communication System" notebook 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 notebook the next time you surf the web!
Customer Reviews
4.8 out of 5 stars rating1.8K Total Reviews
1,770 Reviews
Reviews for similar products
5 out of 5 stars rating
By I.15 July 2015 • Verified Purchase
16.51 cm x 22.22 cm Classic Notebook
Zazzle Reviewer Program
This arrived So Much faster than I was expecting. I left plenty of time for international shipping and then didn't need it. I wasn't sure how the image would turn out (have never bought a notebook from Zazzle before). I was pleasantly surprised by the quality of the image.
5 out of 5 stars rating
By M.30 December 2017 • Verified Purchase
16.51 cm x 22.22 cm Classic Notebook
Creator Review
Item was exactly as described. Very pleased. Print was excellent quality.
5 out of 5 stars rating
By Robert K.18 May 2022 • Verified Purchase
16.51 cm x 22.22 cm Classic Notebook
Creator Review
The image was bright and crisp - the details of the artwork came out perfectly. The paper is easy to write on. Perfect printing - better than expected!
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Product ID: 130345041040367522
Added on 16/10/20, 1:37 am
Rating: G
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