Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Air treatment
Patent
1987-03-03
1990-10-09
Gandy, James M.
Environmental heating and cooling; fluid handling and sanitary e
Heating or cooling
Air treatment
D21168
Patent
active
D03112462
REFERENCES:
patent: D61939 (1923-02-01), Tebbetts
patent: D64118 (1924-03-01), Havens
patent: D126589 (1941-04-01), Levitt et al.
patent: D156868 (1950-01-01), Cole et al.
patent: 1839073 (1931-12-01), Wright
patent: 2618892 (1952-11-01), Locks et al.
Carver Stephen D.
Gandy James M.
Lichtenstein Lisa
Triple H. Industries, Inc.
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