Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Element or attachment – not elsewhere specified
Patent
1980-07-25
1982-10-19
Largen, James R.
Environmental heating and cooling; fluid handling and sanitary e
Heating or cooling
Element or attachment, not elsewhere specified
D2304
Patent
active
D02665875
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patent: 4237576 (1980-12-01), Stakes
patent: 4269571 (1981-05-01), Shikutani et al.
Blank Charles A.
Holler Norbert P.
Kioritz & Corporation
Largen James R.
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