Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Element or attachment – not elsewhere specified
Patent
1982-03-12
1983-10-11
Largen, James R.
Environmental heating and cooling; fluid handling and sanitary e
Heating or cooling
Element or attachment, not elsewhere specified
D2304
Patent
active
D02709414
REFERENCES:
patent: D115448 (1939-06-01), Park
patent: D154703 (1949-08-01), Phillips
patent: D221077 (1971-07-01), Drachten
patent: 910760 (1909-01-01), Wood
patent: 3173478 (1965-03-01), Mayaen
Magters, 1958 Catalog, p. 31, items B and G.
Adams Bruce L.
Burns Robert E.
Largen James R.
Lobato Emmanuel J.
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