Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Element or attachment – not elsewhere specified
Patent
1980-10-01
1983-11-01
Kemper, Catherine E.
Environmental heating and cooling; fluid handling and sanitary e
Heating or cooling
Element or attachment, not elsewhere specified
D2303
Patent
active
D02712369
REFERENCES:
patent: 2909144 (1959-10-01), Baldwin
patent: 2965126 (1960-02-01), Hallinan
patent: 3188994 (1965-06-01), Dawson
patent: 3550548 (1970-12-01), DePersia
patent: 4198918 (1980-04-01), Patriarca
McGraw Leonard J.
Patriarca William C.
Kemper Catherine E.
PAT-N-MAC
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