Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Element or attachment – not elsewhere specified
Patent
1983-07-29
1985-06-18
Largen, James R.
Environmental heating and cooling; fluid handling and sanitary e
Heating or cooling
Element or attachment, not elsewhere specified
D 7318, D 7320
Patent
active
D02793113
REFERENCES:
patent: D184893 (1959-04-01), Reinecke
patent: D241032 (1976-08-01), Burke et al.
patent: D256152 (1980-07-01), Darnel
patent: D266018 (1982-08-01), Dilyard
patent: D266450 (1982-10-01), Swett et al.
patent: D266690 (1982-10-01), Levin
patent: 3648933 (1972-03-01), Grotz
Largen James R.
Packer Plastics, Inc.
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