Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Element or attachment – not elsewhere specified
Patent
1976-12-15
1978-06-20
Largen, James R.
Environmental heating and cooling; fluid handling and sanitary e
Heating or cooling
Element or attachment, not elsewhere specified
D2303
Patent
active
D02482401
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patent: D172931 (1954-08-01), Kosmak
patent: D179312 (1956-11-01), Piere et al.
patent: D187770 (1960-04-01), DuSell
patent: D191999 (1961-12-01), Haralson
patent: 2360611 (1944-10-01), Leonard
patent: 2642859 (1953-06-01), Brown
patent: 2789554 (1957-04-01), Dupler
patent: 2863443 (1958-12-01), Hoffman
patent: 3054394 (1962-09-01), Wright
patent: 4026264 (1977-05-01), Henriques
Haugen Orrin M.
Largen James R.
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