Edgar Markov - Judge Gift Cards 2021
Judge Gift Cards 2021 · 2021
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About this card
Edgar Marion Villchur was an American inventor, educator, and writer widely known for his 1954 invention of the acoustic suspension loudspeaker which revolutionized the field of high-fidelity equipment. A speaker Villchur developed, the AR-3, is exhibited at The Smithsonian Institution's Information Age Exhibit in Washington, DC.
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