Valve actuator

Details Valve actuator Valve actuator

1989-12-08

1991-12-24

Largen, James R.

Environmental heating and cooling; fluid handling and sanitary e

Fluid handling or treatment equipment

Valve or body therefor

Patent

active

D03226573

REFERENCES:
patent: D96405 (1935-07-01), Murphy
patent: D152809 (1949-02-01), MacCauley
patent: D168641 (1953-01-01), St. Clair et al.
patent: D186489 (1959-10-01), Frye
patent: D236266 (1975-08-01), Holben
patent: 3246872 (1966-04-01), Seltsam
patent: 3422850 (1969-01-01), Caldwell
patent: 3426798 (1969-02-01), Chernak
patent: 3802462 (1974-04-01), Troseh
patent: 3838707 (1974-10-01), Wachowitz, Jr.
patent: 4014514 (1977-03-01), Priese et al.
patent: 4316482 (1982-02-01), Pearep
patent: 4421295 (1983-12-01), Parkison

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