Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Element or attachment – not elsewhere specified
Patent
1980-08-28
1983-05-31
Largen, James R.
Environmental heating and cooling; fluid handling and sanitary e
Heating or cooling
Element or attachment, not elsewhere specified
D2302
Patent
active
D02692023
REFERENCES:
patent: D85560 (1931-11-01), Tilden
patent: D226432 (1973-03-01), Anderson
patent: 3654637 (1972-04-01), Young
patent: 3760428 (1973-09-01), Korol
patent: 4145767 (1979-03-01), Ibel
patent: 4162548 (1979-07-01), Groombridge et al.
patent: 4219895 (1980-09-01), Thompson
patent: 4304014 (1981-12-01), Thompson
Largen James R.
UPL Group Limited
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