Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Element or attachment – not elsewhere specified
Patent
1980-08-08
1983-02-15
Kemper, Catherine E.
Environmental heating and cooling; fluid handling and sanitary e
Heating or cooling
Element or attachment, not elsewhere specified
D2303
Patent
active
D02679728
REFERENCES:
patent: D92502 (1934-06-01), Sulzer
patent: 3870032 (1975-03-01), Lydie et al.
patent: 3913558 (1975-10-01), Caldwell
patent: 4245614 (1981-01-01), Hurwitz et al.
Lingwall David K.
Schockemoehl Robert J.
Kemper Catherine E.
R. J. Custom Firescreen, Incorporated
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