Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Element or attachment – not elsewhere specified
Patent
1976-07-01
1978-10-17
Largen, James R.
Environmental heating and cooling; fluid handling and sanitary e
Heating or cooling
Element or attachment, not elsewhere specified
D2301
Patent
active
D02499550
REFERENCES:
patent: D101978 (1936-11-01), Williams
patent: D167285 (1952-07-01), Schmid
patent: D187205 (1966-02-01), Laughlin
patent: 1999277 (1935-04-01), Boosey
patent: 2666493 (1954-01-01), Gordon
patent: 3245540 (1966-04-01), Johnson
Andrus Elwin A.
Largen James R.
Steel Products Manufacturing Co. Inc.
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