Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Element or attachment – not elsewhere specified
Patent
1976-06-10
1977-09-06
Largen, James R.
Environmental heating and cooling; fluid handling and sanitary e
Heating or cooling
Element or attachment, not elsewhere specified
D2304
Patent
active
D02457059
REFERENCES:
patent: D196579 (1963-10-01), Kagan
patent: D196907 (1963-11-01), Halvorson
patent: D201963 (1965-08-01), Boller et al.
patent: D216974 (1970-03-01), Wilson
patent: D233436 (1974-10-01), Kirby
patent: 1238068 (1917-08-01), Slater et al.
patent: 3804592 (1974-04-01), Garbe
patent: 3990848 (1976-11-01), Corris
patent: 3993444 (1976-11-01), Brown
Eikosha Co., Ltd.
Largen James R.
Tilton Timothy L.
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