Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Element or attachment – not elsewhere specified
Patent
1977-12-05
1980-06-10
Largen, James R.
Environmental heating and cooling; fluid handling and sanitary e
Heating or cooling
Element or attachment, not elsewhere specified
D2301
Patent
active
D02553783
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patent: 3126156 (1964-03-01), Rinkewich
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patent: 3512715 (1970-05-01), Bryant
Glanzman Gerald H.
Larchmont Engineering and Irrigation, Inc.
Largen James R.
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