Double check valve

Details Double check valve Double check valve

2003-06-03

2004-09-14

Holtje, Nelson C. (Department: 2913)

Environmental heating and cooling; fluid handling and sanitary e

Fluid handling or treatment equipment

Valve or body therefor

Design Patent

active

D0496091

CLAIM:
The ornamental design for a double check valve, as shown and described.

REFERENCES:
patent: 6349736 (2002-02-01), Dunmire
patent: 6396404 (2002-05-01), McHugh
patent: 6546946 (2003-04-01), Dunmire
patent: 6581626 (2003-06-01), Noll et al.

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