Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Element or attachment – not elsewhere specified
Patent
1978-04-13
1980-12-30
Largen, James R.
Environmental heating and cooling; fluid handling and sanitary e
Heating or cooling
Element or attachment, not elsewhere specified
D2301
Patent
active
D02577402
REFERENCES:
patent: D134562 (1942-12-01), Murphy
patent: D199098 (1964-09-01), Tyler
patent: D226712 (1973-04-01), Tada
patent: D244531 (1977-05-01), Klingaman
patent: D247366 (1978-02-01), Jones et al.
Humphrey, II Theodore J.
Wesner Walter H.
Largen James R.
Marcus Stanley A.
The AFA Corporation
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