Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Element or attachment – not elsewhere specified
Patent
1981-04-20
1983-05-10
Largen, James R.
Environmental heating and cooling; fluid handling and sanitary e
Heating or cooling
Element or attachment, not elsewhere specified
D2301
Patent
active
D02689502
REFERENCES:
patent: D177185 (1956-03-01), Manville
patent: D187845 (1960-05-01), Kohler
patent: D219740 (1971-01-01), Niemann
patent: D227467 (1973-06-01), Genaro
patent: D235546 (1975-06-01), Landell
patent: D243607 (1977-03-01), Mono et al.
patent: 2367809 (1945-01-01), Stein et al.
patent: 2790632 (1957-04-01), Mellette
patent: 4037624 (1977-07-01), Turner et al.
Product Engineering, Nov. 11, 1963, p. 7, Items Nos. 1-5.
Largen James R.
UPL Group Limited
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