Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Element or attachment – not elsewhere specified
Patent
1980-08-25
1984-01-17
Largen, James R.
Environmental heating and cooling; fluid handling and sanitary e
Heating or cooling
Element or attachment, not elsewhere specified
D2301
Patent
active
D02722623
REFERENCES:
patent: D53747 (1919-08-01), Odenkirk
patent: D97414 (1935-11-01), Schlafman
patent: 3833013 (1974-09-01), Leonard
patent: 3952765 (1976-04-01), Kimura
patent: 4206779 (1980-06-01), Sandstrom
King Specialty Co. Inc., Special Bulletin, No. 171, (.COPYRGT.) 1963, p. 7, lower right items.
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