Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Element or attachment – not elsewhere specified
Patent
1980-02-27
1982-11-09
Largen, James R.
Environmental heating and cooling; fluid handling and sanitary e
Heating or cooling
Element or attachment, not elsewhere specified
D2301
Patent
active
D02668637
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patent: 3757263 (1973-09-01), Saarem et al.
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Largen James R.
Total Flood Corporation
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