Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Element or attachment – not elsewhere specified
Patent
1978-07-28
1980-08-19
Largen, James R.
Environmental heating and cooling; fluid handling and sanitary e
Heating or cooling
Element or attachment, not elsewhere specified
D2301
Patent
active
D02564998
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patent: D35064 (1901-09-01), Pulcifer
patent: 911486 (1909-02-01), Foulois
patent: 2210748 (1940-08-01), Berstein
patent: 3568222 (1971-03-01), Gantzert
patent: 3821820 (1974-07-01), Thompson
patent: 3921229 (1975-11-01), Yavitch
patent: 3967326 (1976-07-01), Tammen
patent: 4038737 (1977-08-01), Bretone, Jr.
Largen James R.
Thompson Jr. Woodford R.
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