Record actuated sound system
United States Patent 2841654

Inventors:
Athey, Skipworth W.
Pourciau, Louis L.
Shaw, David B.
Publication Date:
07/01/1958
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Assignee:
GEN PRECISION LAB INC
Primary Class:
Other Classes:
369/70
International Classes:
G11B3/00
US Patent References:
2427850Switching method and system
2499587Control track sound distribution system and record therefor
2714633Perspective sound systems