Magnetically actuated rising stem valve | Patent Number 04274444
US 04274444 NAFilled DateMay 17, 1979
Priority DateMay 17, 1979
Publication Date-
Expiration DateJun 23, 1985
Inventor/Applicants Robert F. Ruyak
ExaminesROSENTHAL, ARNOLD
Art Unit3401
Technology Center3400
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