Title:
AUTOMATIC RHYTHM PLAYER EMPLOYING PHOTOELECTRIC AND ELECTROMAGNETIC MATRIX ELEMENTS
United States Patent 3549776

Inventors:
Shiga, Takeo
Okamoto, Michio
Mitsuhashi, Kiyohiko
Publication Date:
12/22/1970
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Assignee:
Nippon, Columbia
Primary Class:
84/667
Other Classes:
984/351, 84/713
International Classes:
G10H1/40; G10H5/02; G10F1/08




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