Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Element or attachment – not elsewhere specified
Patent
1976-11-22
1978-01-17
Largen, James R.
Environmental heating and cooling; fluid handling and sanitary e
Heating or cooling
Element or attachment, not elsewhere specified
D2399
Patent
active
D02469863
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patent: D159407 (1950-07-01), Costello
patent: D187269 (1960-02-01), Carlson
patent: D189420 (1960-12-01), Diehl
patent: D228287 (1973-09-01), Costello
patent: 2513919 (1950-07-01), Costello
patent: 2611068 (1956-09-01), Wellens
patent: 2691716 (1954-10-01), Wellens
patent: 2692327 (1954-10-01), Avrigan, Jr.
patent: 2931880 (1960-04-01), Yaffe
patent: 2942090 (1960-06-01), Diehl
Fraser Malcolm W.
Largen James R.
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