Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Element or attachment – not elsewhere specified
Patent
1976-02-05
1978-01-10
Largen, James R.
Environmental heating and cooling; fluid handling and sanitary e
Heating or cooling
Element or attachment, not elsewhere specified
D2301
Patent
active
D02469090
REFERENCES:
patent: D136369 (1943-09-01), Kuppersmith
patent: D154427 (1949-07-01), Peterson
patent: D172372 (1954-06-01), Wagner
patent: D177198 (1956-03-01), Terrg et al.
patent: D207766 (1967-05-01), Keane
patent: D218306 (1970-08-01), Kreis et al.
patent: 2361655 (1944-10-01), Robinson
patent: 2968474 (1961-01-01), Eichelman et al.
patent: 3949966 (1976-04-01), Fabish
Jackson, Jr. Auzville
Largen James R.
Robertshaw Controls Co.
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