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microgroove record

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microgroove record

[′mī·krə‚grüv ‚rek·ərd]
(engineering acoustics)
long-playing record
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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References in periodicals archive
1931: Long-playing records (33rpm) were demonstrated in New York by RCA-Victor, but failed because of the high price of the players: the first real microgroove records did not appear until 1948.
ON THIS DAY IN ..
1931: Long-playing records (33rpm) were demonstrated in New York by RCA-Victor, but the venture failed because of the high price of the players and the first real microgroove records did not appear until 1948.
ON THIS DAY
1931: Long-playing records (33 rpm) were demonstrated in New York by RCA-Victor, but the venture failed because of the high price of the players, and the first real microgroove records did not appear until 1948.
ON THIS DAY IN ..
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