Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Element or attachment – not elsewhere specified
Patent
1979-06-18
1981-11-17
Kemper, Catherine E.
Environmental heating and cooling; fluid handling and sanitary e
Heating or cooling
Element or attachment, not elsewhere specified
D23157, D2303
Patent
active
D02619237
REFERENCES:
patent: D42692 (1912-07-01), Low et al.
patent: D65432 (1924-08-01), Conroy et al.
patent: D75795 (1928-07-01), Hubbell, Jr.
patent: D129488 (1941-09-01), Norris
patent: D143609 (1946-01-01), Mathis et al.
Home Furnishings Daily-May 3, 1961-Breezeless Fan.
Garoogian Zakar
Nunez Henry D.
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