Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Element or attachment – not elsewhere specified
Patent
1976-10-27
1978-10-03
Largen, James R.
Environmental heating and cooling; fluid handling and sanitary e
Heating or cooling
Element or attachment, not elsewhere specified
D2301
Patent
active
D02498030
REFERENCES:
patent: D13673 (1883-02-01), McDonald
patent: D115235 (1939-06-01), Olsen
patent: D140256 (1945-02-01), Shaeffer
patent: 668882 (1901-02-01), O'Meara
Largen James R.
Toyo Valve Co., Ltd.
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