Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Element or attachment – not elsewhere specified
Patent
1978-10-04
1980-07-08
Largen, James R.
Environmental heating and cooling; fluid handling and sanitary e
Heating or cooling
Element or attachment, not elsewhere specified
D2302
Patent
active
D02558289
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patent: D222060 (1971-09-01), Quintana
patent: D231458 (1974-04-01), Fulton et al.
patent: D233755 (1974-11-01), Hewson
patent: D250344 (1978-11-01), Sargent et al.
patent: 3801991 (1974-04-01), Fulton et al.
patent: 3851339 (1974-12-01), Flinner et al.
patent: 3949430 (1976-04-01), Miller et al.
patent: 4091475 (1978-05-01), Hewson et al.
Butler Frederick A.
Croonenberg William
Largen James R.
Thetford Corporation
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