Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Element or attachment – not elsewhere specified
Patent
1977-06-15
1979-09-25
Largen, James R.
Environmental heating and cooling; fluid handling and sanitary e
Heating or cooling
Element or attachment, not elsewhere specified
D2301
Patent
active
D02530074
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patent: D211724 (1968-07-01), Schneider, Jr.
patent: D217058 (1970-03-01), Marsh
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patent: 2976129 (1961-03-01), Buehler
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patent: 3792979 (1974-02-01), Clinton
patent: 3846078 (1974-11-01), Brett
patent: 3946902 (1976-03-01), Stepanek, Jr.
Casberg John M.
MacGregor Francis W.
Sangster Arlon G.
Burdick Bruce E.
Largen James R.
Olin Corporation
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