Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Element or attachment – not elsewhere specified
Patent
1973-11-09
1977-06-28
Largen, James R.
Environmental heating and cooling; fluid handling and sanitary e
Heating or cooling
Element or attachment, not elsewhere specified
D2302
Patent
active
D02448556
REFERENCES:
patent: D211876 (1968-08-01), Doman
patent: D214270 (1969-05-01), Bonsack
patent: D226607 (1973-04-01), Lawrence
patent: D227101 (1973-06-01), Primault
patent: 1445243 (1923-02-01), Spaleck
Kohler Co.
Largen James R.
Seidel Arthur H.
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