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what did RCA come out with in April 1949 that was useful?

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2007-02-15 08:59:44 · 1 answers · asked by JULIE 7 in Consumer Electronics ➔ Music & Music Players

1 answers

They developed and released the 45 rpm record to the public.

2007-02-15 09:08:28 · answer #1 · answered by c 3 · 0⤊ 0⤋

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