Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Element or attachment – not elsewhere specified
Patent
1982-03-26
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
D02744546
REFERENCES:
patent: D216194 (1969-12-01), Benson
patent: D226405 (1973-02-01), Jacuzzi
patent: D226607 (1973-04-01), Lawrence
patent: D227101 (1973-06-01), Primault
patent: D238072 (1975-12-01), Ganger
patent: D241643 (1976-09-01), Bonsack
patent: D243693 (1977-03-01), Gruber
patent: D244855 (1977-06-01), Doman
patent: D253547 (1979-11-01), Beddome et al.
Gruber Systems, Inc.
Largen James R.
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