Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Element or attachment – not elsewhere specified
Patent
1981-04-01
1983-10-18
Largen, James R.
Environmental heating and cooling; fluid handling and sanitary e
Heating or cooling
Element or attachment, not elsewhere specified
D2335
Patent
active
D02710390
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patent: 3706414 (1972-12-01), Dupre
patent: 3761020 (1973-09-01), Tropeano et al.
patent: 3822825 (1974-07-01), Dupre
patent: 3952944 (1976-04-01), Dupre
patent: 3964682 (1976-06-01), Tropeano et al.
Glanzman Gerald H.
Larchmont Engineering and Irrigation, Inc.
Largen James R.
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