Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Element or attachment – not elsewhere specified
Patent
1980-11-26
1983-05-24
Largen, James R.
Environmental heating and cooling; fluid handling and sanitary e
Heating or cooling
Element or attachment, not elsewhere specified
D23155, D26 59, D2304
Patent
active
D02691167
REFERENCES:
patent: D101479 (1936-10-01), Kisling
patent: D152778 (1949-02-01), Fox
patent: D211246 (1968-06-01), McDonald
patent: D217460 (1970-05-01), Greubel
patent: D219588 (1970-12-01), Laupot
patent: D231531 (1974-04-01), Goossens
patent: 2711287 (1955-06-01), Russell
patent: 2850228 (1958-09-01), Rowley
Jacobson Harvey B.
Largen James R.
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