Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Element or attachment – not elsewhere specified
Patent
1980-09-12
1982-08-24
Largen, James R.
Environmental heating and cooling; fluid handling and sanitary e
Heating or cooling
Element or attachment, not elsewhere specified
D2302
Patent
active
D02659220
REFERENCES:
patent: D203373 (1965-12-01), McNair
patent: D237709 (1975-11-01), Jacuzzi
patent: D238072 (1975-12-01), Ganger
patent: D238074 (1975-12-01), Gruber
patent: D247511 (1978-03-01), Lee et al.
patent: D247978 (1978-05-01), D'Innocente
patent: D254387 (1980-03-01), Ogden
patent: D262485 (1981-12-01), Wissinger
Gruber Systems, Inc.
Largen James R.
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