RHYTHM CLOCK
United States Patent 3472018

Inventors:
Papworth, Walter A.
Publication Date:
10/14/1969
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Assignee:
Walter, Papworth A.
Primary Class:
368/35
Other Classes:
968/208, 368/72, D10/1
International Classes:
G04B19/26; G04B19/00; G04B19/24




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