Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Element or attachment – not elsewhere specified
Patent
1986-09-26
1989-09-26
Gandy, James M.
Environmental heating and cooling; fluid handling and sanitary e
Heating or cooling
Element or attachment, not elsewhere specified
Patent
active
D03037053
REFERENCES:
patent: D201933 (1965-08-01), Ruggles
patent: D298053 (1988-10-01), Waltz et al.
patent: 2587509 (1952-02-01), Moyer et al.
American Builder, Oct. 1956, p. 244, Triangle Louver.
Gandy James M.
Lichtenstein Lisa
Phillips C. A.
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