Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Element or attachment – not elsewhere specified
Patent
1975-11-12
1977-07-19
Largen, James R.
Environmental heating and cooling; fluid handling and sanitary e
Heating or cooling
Element or attachment, not elsewhere specified
D2301
Patent
active
D02450917
REFERENCES:
patent: D121280 (1940-07-01), Keller
patent: D121281 (1940-07-01), Keller
patent: D159051 (1950-06-01), Darr
patent: D226660 (1973-04-01), Mendenhall
Creedon V. M.
Largen James R.
Lyng Industrier A-S Leksvikarmatur
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