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- several radio stations based in American military bases, but none were officially recognized until 1942. The success of these individual radio stations helped98 KB (10,828 words) - 00:02, 22 February 2025
- Rockwell Collins (category Defunct manufacturing companies based in Iowa) (section Shortwave transmitters)founded Collins Radio Company in 1933 in Cedar Rapids, Iowa. It designed and produced both shortwave radio equipment and equipment for the AM radio broadcast32 KB (3,658 words) - 15:01, 21 February 2025