Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Element or attachment – not elsewhere specified
Patent
1976-10-12
1978-02-28
Largen, James R.
Environmental heating and cooling; fluid handling and sanitary e
Heating or cooling
Element or attachment, not elsewhere specified
D2301
Patent
active
D02473666
REFERENCES:
patent: D199098 (1964-09-01), Tyler
patent: D207636 (1967-05-01), Clevenger
patent: D228657 (1973-10-01), Anderson
patent: D242351 (1976-11-01), Tada
patent: D244531 (1977-05-01), Klingaman
patent: 3061202 (1962-10-01), Tyler
patent: 3650473 (1972-03-01), Malone
patent: 3685739 (1972-08-01), Vanier
patent: 3768734 (1973-10-01), Anderson et al.
patent: 3780951 (1973-12-01), Powers
Jones David A.
Pardo John
Drackett Co.
Largen James R.
Mugford David J.
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