Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Element or attachment – not elsewhere specified
Patent
1977-07-14
1979-04-17
Largen, James R.
Environmental heating and cooling; fluid handling and sanitary e
Heating or cooling
Element or attachment, not elsewhere specified
D2301
Patent
active
D02516020
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patent: 3899134 (1975-08-01), Wagner
Graco Inc.
Largen James R.
Sjoquist Paul L.
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