Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Element or attachment – not elsewhere specified
Patent
1990-04-06
1993-12-07
Gandy, James M.
Environmental heating and cooling; fluid handling and sanitary e
Heating or cooling
Element or attachment, not elsewhere specified
Patent
active
D03421287
REFERENCES:
patent: D49102 (1916-05-01), Triggs
patent: D53051 (1919-03-01), Scherer
patent: 1496062 (1924-06-01), Luhrs
patent: 2178213 (1939-10-01), Weiller
patent: 2317613 (1943-04-01), Hull et al.
patent: 2879706 (1959-03-01), Smith
Gandy James M.
Rhea Robert K.
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