Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Element or attachment – not elsewhere specified
Patent
1980-08-27
1982-10-05
Largen, James R.
Environmental heating and cooling; fluid handling and sanitary e
Heating or cooling
Element or attachment, not elsewhere specified
D 7 60, D 7 66, D2301
Patent
active
D02664500
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Blake, III Joseph W.
Conti Rino
Swett James B.
Dart Industries Inc.
Doninger John A.
Largen James R.
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