Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Element or attachment – not elsewhere specified
Patent
1981-07-27
1984-02-07
Largen, James R.
Environmental heating and cooling; fluid handling and sanitary e
Heating or cooling
Element or attachment, not elsewhere specified
D2304
Patent
active
D02725584
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patent: D255486 (1980-06-01), Bender
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patent: D269292 (1983-06-01), McGraw
patent: 2218198 (1940-10-01), Harris
patent: 3861894 (1975-01-01), Marsh
patent: 4253852 (1981-03-01), Adams
patent: 4261712 (1981-04-01), Kinkado
patent: 4361427 (1982-11-01), Barradas
Igu Aktiengesellschaft
Largen James R.
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