Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Element or attachment – not elsewhere specified
Patent
1976-03-29
1978-02-14
Largen, James R.
Environmental heating and cooling; fluid handling and sanitary e
Heating or cooling
Element or attachment, not elsewhere specified
D2301
Patent
active
D02472481
REFERENCES:
patent: D232238 (1974-07-01), La Borde
patent: D243531 (1977-03-01), Striglo, Jr.
patent: 3153682 (1964-10-01), Walker
patent: 3279773 (1966-10-01), Schwartz
patent: 3334819 (1967-08-01), Olavson
patent: 3396950 (1968-08-01), Wood
patent: 3954922 (1976-05-01), Walker et al.
patent: 4007246 (1977-02-01), Gorden
Creedon V. M.
Degremont S.A.
Largen James R.
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