Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Element or attachment – not elsewhere specified
Patent
1977-05-18
1979-03-06
Largen, James R.
Environmental heating and cooling; fluid handling and sanitary e
Heating or cooling
Element or attachment, not elsewhere specified
D2301
Patent
active
D02512556
REFERENCES:
patent: D198885 (1964-08-01), Gifford
patent: D198886 (1964-08-01), Gifford
patent: 2122560 (1938-07-01), De Florez
patent: 3485476 (1969-12-01), Hemphill
patent: 4007910 (1977-02-01), Yasuoka et al.
Hansen George E.
McInerney John A.
Crane & Co.
Largen James R.
Schwind George S.
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