Air valve

Details Air valve Air valve

1994-05-25

1995-09-12

Zarfas, Louis S.

Environmental heating and cooling; fluid handling and sanitary e

Fluid handling or treatment equipment

Valve or body therefor

Patent

active

D03622959

REFERENCES:
patent: D278079 (1985-03-01), Widerby
patent: D346641 (1994-05-01), Scheurer
patent: 3083943 (1963-04-01), Stewart, Jr. et al.
patent: 4015622 (1977-04-01), Pagani
patent: 4966185 (1990-10-01), Schrom

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