Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Element or attachment – not elsewhere specified
Patent
1981-05-29
1984-06-26
Largen, James R.
Environmental heating and cooling; fluid handling and sanitary e
Heating or cooling
Element or attachment, not elsewhere specified
Patent
active
D02744627
REFERENCES:
patent: D218310 (1970-08-01), Rosenberg
patent: D244538 (1977-05-01), Wharton et al.
patent: D269294 (1983-06-01), Rakocy
patent: 1499864 (1924-07-01), Gordon
patent: 2701030 (1955-02-01), Hazelton
patent: 2703153 (1955-03-01), Revoir, Jr. et al.
patent: 3772828 (1973-11-01), Klugman
Nylon Filter Corp. brochure, p. 6, items Nos. 132 & 133, p. 7, items Nos. 139 & 142.
Muller Ronald L.
Rakocy William J.
Largen James R.
North American Philips Corporation
Schneider Rolf E.
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