Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Element or attachment – not elsewhere specified
Patent
1976-03-18
1977-05-03
Largen, James R.
Environmental heating and cooling; fluid handling and sanitary e
Heating or cooling
Element or attachment, not elsewhere specified
D2303
Patent
active
D02441993
REFERENCES:
patent: D179312 (1956-11-01), Pierce et al.
patent: D201266 (1965-06-01), Rose
patent: D201483 (1965-06-01), Lever
patent: D231933 (1974-06-01), Andrew
patent: D237084 (1975-10-01), Collver
patent: 3685506 (1972-08-01), Mouat
Barnes John C.
Largen James R.
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