Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Element or attachment – not elsewhere specified
Patent
1983-12-30
1986-07-29
Largen, James R.
Environmental heating and cooling; fluid handling and sanitary e
Heating or cooling
Element or attachment, not elsewhere specified
Patent
active
D02848872
REFERENCES:
patent: D108628 (1938-03-01), Ritter
patent: D166650 (1952-04-01), Warren
patent: D195243 (1963-05-01), Kelly
patent: D218825 (1970-09-01), Blumer
patent: 388616 (1888-08-01), Bailey
patent: 2393581 (1946-01-01), Wentworth
patent: 4221406 (1980-09-01), Traylor
Largen James R.
Universal Valve Co. Inc.
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