APPARATUS FOR PROGRAMMING CYCLIC ACTUATION OF VALVES
United States Patent 3440434

Inventors:
Yates, Harry D.
Lieding, Calvin A.
Publication Date:
04/22/1969
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Assignee:
Griswold, Controls
Primary Class:
307/41
Other Classes:
239/70, 307/141.400, 968/622, 137/624.200
International Classes:
G04C23/34; G05B19/10; G04C23/00; G05B19/04; H02J3/14; H02J1/00; H02J3/00




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