Non-drain valve

Details Non-drain valve Non-drain valve

1982-08-16

1985-05-07

Burke, Wallace R.

Environmental heating and cooling; fluid handling and sanitary e

Heating or cooling

Element or attachment, not elsewhere specified

Patent

active

D02787393

REFERENCES:
patent: D208139 (1967-07-01), Adams
patent: D259891 (1981-07-01), Ogniewski
patent: 2666451 (1954-01-01), Ray
patent: 2962035 (1960-11-01), Wright et al.
Domestic Engineering, vol. 233, Jan.-Jun. 1980, p. 57, Flo-Control Inc., Check Valve.

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