Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Element or attachment – not elsewhere specified
Patent
1979-02-09
1980-08-12
Largen, James R.
Environmental heating and cooling; fluid handling and sanitary e
Heating or cooling
Element or attachment, not elsewhere specified
239201, D2301
Patent
active
D02563860
REFERENCES:
patent: D236469 (1975-08-01), Sbicca
patent: D251064 (1979-02-01), Bergland
patent: 2080341 (1937-05-01), Schumacher
patent: 3015448 (1962-01-01), Hurless
patent: 3018057 (1962-01-01), Anderson
patent: 3662956 (1972-05-01), Hedman
patent: 3762642 (1973-10-01), Di Santo
patent: 3904120 (1975-09-01), Sbicca
Jacobs Mark C.
Largen James R.
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