Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Element or attachment – not elsewhere specified
Patent
1977-03-04
1978-07-18
Largen, James R.
Environmental heating and cooling; fluid handling and sanitary e
Heating or cooling
Element or attachment, not elsewhere specified
D 7207, D2303, D0708
Patent
active
D02485656
REFERENCES:
patent: D240536 (1976-07-01), Christophel
patent: 3901212 (1975-08-01), Stites
patent: 4008704 (1977-02-01), Petrie
patent: 4010729 (1977-03-01), Egli
patent: 4018210 (1977-04-01), Christophel
Largen James R.
Mills, III John G.
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