Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Element or attachment – not elsewhere specified
Patent
1979-08-27
1981-08-18
Feifer, Melvin B.
Environmental heating and cooling; fluid handling and sanitary e
Heating or cooling
Element or attachment, not elsewhere specified
D21185, D2301
Patent
active
D02602792
REFERENCES:
patent: 2634545 (1953-04-01), Gertz
patent: 2757960 (1956-08-01), Hatcher
F. O. Merz Co. Inc., Flyer, front, Lady Bug Band, figures.
Geller Douglas A.
McElroy David C.
Feifer Melvin B.
Wham-O Mfg. Co.
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