Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Element or attachment – not elsewhere specified
Patent
1983-05-02
1985-06-11
Largen, James R.
Environmental heating and cooling; fluid handling and sanitary e
Heating or cooling
Element or attachment, not elsewhere specified
Patent
active
D02792117
REFERENCES:
patent: D241032 (1976-08-01), Burke et al.
patent: D256152 (1980-07-01), Darnell
patent: D266018 (1982-08-01), Dilyard
patent: 453530 (1891-06-01), Baker et al.
patent: 1702523 (1929-02-01), Schafer
patent: 3648933 (1972-03-01), Grotz
Brian Davis and Company Proprietary Limited
Largen James R.
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