Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Element or attachment – not elsewhere specified
Patent
1976-03-25
1979-02-13
Largen, James R.
Environmental heating and cooling; fluid handling and sanitary e
Heating or cooling
Element or attachment, not elsewhere specified
D2301
Patent
active
D02510642
REFERENCES:
patent: D212091 (1968-08-01), Cloud
patent: D217767 (1970-06-01), Harness
patent: D222674 (1971-11-01), Engel
patent: 2733100 (1956-01-01), Simonsen
patent: 3018057 (1962-01-01), Anderson
patent: 3131867 (1964-05-01), Miller et al.
patent: 3265310 (1966-08-01), Cohen
patent: 3408006 (1968-10-01), Stanwood
patent: 3662956 (1972-05-01), Hedman
Jacobs Mark C.
Largen James R.
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