Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Element or attachment – not elsewhere specified
Patent
1981-06-30
1983-12-13
Largen, James R.
Environmental heating and cooling; fluid handling and sanitary e
Heating or cooling
Element or attachment, not elsewhere specified
D2304
Patent
active
D02717956
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patent: 3546428 (1970-12-01), Omotiundro
Ishii Yoshiyasu
Nagata Kazuo
Nakao Shinroku
Combi Co. Ltd.
Largen James R.
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