Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Element or attachment – not elsewhere specified
Patent
1983-06-15
1986-08-26
Largen, James R.
Environmental heating and cooling; fluid handling and sanitary e
Heating or cooling
Element or attachment, not elsewhere specified
D29 5
Patent
active
D02853337
REFERENCES:
patent: D172373 (1954-06-01), Wagner
patent: D231929 (1974-06-01), Ranson
patent: D235261 (1975-06-01), Wichman et al.
patent: D264617 (1982-05-01), Freeman
patent: 2480989 (1949-09-01), Weaver
patent: 2628868 (1953-02-01), Mitcham
patent: 3221995 (1965-12-01), Sievert
patent: 4367799 (1983-01-01), Tarpley, Jr.
patent: 4437103 (1984-03-01), Ikeda
Largen James R.
Vinson Brian N.
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