Switch valve

Details Switch valve Switch valve

2001-07-13

2002-06-11

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

D0458665

CLAIM:
I claim the ornamental design for a switch valve, as shown and described.

REFERENCES:
patent: D53329 (1919-05-01), Brightman
patent: D215213 (1969-09-01), Beaver
patent: D234200 (1975-01-01), Buechler
patent: D242350 (1976-11-01), Kann
patent: D318714 (1991-07-01), Spangler
patent: D318903 (1991-08-01), Lenberg
patent: D400970 (1998-11-01), Voo
patent: D411870 (1999-07-01), Humber
patent: D412561 (1999-08-01), Voo
patent: D430272 (2000-08-01), Hung-Lin
patent: D448454 (2001-09-01), Lai
patent: D450808 (2001-11-01), Gottwald

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