Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Element or attachment – not elsewhere specified
Patent
1976-05-28
1977-05-31
Largen, James R.
Environmental heating and cooling; fluid handling and sanitary e
Heating or cooling
Element or attachment, not elsewhere specified
D2302
Patent
active
D02445344
REFERENCES:
patent: D24850 (1895-11-01), Torrance
patent: D36577 (1903-10-01), Zipp
patent: D79312 (1929-08-01), Watrous
patent: D220396 (1971-04-01), Skyhawk
patent: D229692 (1973-12-01), Granger
patent: D238070 (1975-12-01), Granger
patent: D238073 (1975-12-01), Granger
patent: 2026952 (1936-01-01), Reed et al.
Dimensionetix, Inc.
Geauque Robert E.
Largen James R.
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