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8000 pages RCA technique: radio,amplifier,phonograph,oscillator,tube 1920+
$19.50 USD

Sold on: 2013-Apr-18

Marketplace: eBay
1 Treasure
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Detail:

I offer a collection of over 1700 (!!) old patents of the wellknown company RCA corporation (Radio Corporation of America) from USA between 1920 and 1935 (all in english). The patent collection has ab...




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