Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Element or attachment – not elsewhere specified
Patent
1980-11-17
1983-05-24
Largen, James R.
Environmental heating and cooling; fluid handling and sanitary e
Heating or cooling
Element or attachment, not elsewhere specified
D2304
Patent
active
D02691140
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patent: 4185545 (1980-01-01), Rusth et al.
Martin David A.
Rusth Douglas B.
Givnan, Jr. James D.
Largen James R.
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