Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Element or attachment – not elsewhere specified
Patent
1976-05-24
1978-04-11
Largen, James R.
Environmental heating and cooling; fluid handling and sanitary e
Heating or cooling
Element or attachment, not elsewhere specified
D2301
Patent
active
D02477173
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patent: 2821434 (1958-01-01), Hunter et al.
patent: 2875428 (1959-02-01), Griswold
patent: 3140720 (1964-07-01), Griswold
patent: 3286733 (1966-11-01), Hunter
patent: 3735779 (1973-05-01), Hunter
patent: 3782630 (1974-01-01), Sabo
patent: 3865138 (1975-02-01), Jones
patent: 3921667 (1975-11-01), Corliss et al.
Grill Benjamin
Sturman Oded E.
Blakely, Jr. Roger W.
Burwell Clifton
Largen James R.
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