Vacuum breaker

Details Vacuum breaker Vacuum breaker

1986-12-29

1990-07-10

Largen, James R.

Environmental heating and cooling; fluid handling and sanitary e

Fluid handling or treatment equipment

Valve or body therefor

Patent

active

D03091732

REFERENCES:
patent: D277599 (1985-02-01), Arnold et al.
patent: D278740 (1985-05-01), Bolgert
patent: 3155106 (1967-11-01), Baron
patent: 3180352 (1965-04-01), Kersten et al.
patent: 3183923 (1965-05-01), Henrikson
patent: 3311929 (1967-04-01), O'Brien
patent: 3414003 (1968-12-01), Wyekoff
patent: 3425438 (1969-02-01), Suffron
patent: 3512545 (1970-05-01), Weaver
patent: 3929149 (1975-12-01), Phillips
patent: 4237919 (1980-12-01), Crawford et al.
patent: 4399832 (1983-08-01), Appleby
patent: 4811753 (1989-03-01), Bethune

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