Shut-off valve

Details Shut-off valve Shut-off valve

1977-07-29

1980-02-05

Largen, James R.

Environmental heating and cooling; fluid handling and sanitary e

Heating or cooling

Element or attachment, not elsewhere specified

D2301

Patent

active

D02541467

REFERENCES:
patent: D175890 (1955-10-01), Kraebel et al.
patent: D196774 (1963-10-01), Sanborn
patent: D229414 (1973-11-01), Luckenbill et al.
patent: D237968 (1975-12-01), Olson, Jr.
patent: 3258026 (1966-06-01), Weaver
patent: 3632083 (1972-01-01), Meeks
patent: 3768777 (1973-10-01), Hechler

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