PUSH-BUTTON TYPE FLUID LOGIC ELEMENT FOR FLUID CONTROL,INDICATING OR RECORDING SYSTEM
United States Patent 3550620

Inventors:
Hasegawa, Hikaru
Publication Date:
12/29/1970
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Assignee:
HITACHI LTD
Primary Class:
137/596.150
Other Classes:
137/625.600, 235/201ME, 235/200R
International Classes:
F15C3/00; F16K11/00; F16K11/00; G06D1/02




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