Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Element or attachment – not elsewhere specified
Patent
1977-09-19
1979-09-11
Largen, James R.
Environmental heating and cooling; fluid handling and sanitary e
Heating or cooling
Element or attachment, not elsewhere specified
D2302
Patent
active
D02528894
REFERENCES:
patent: D160222 (1950-09-01), Skidmore
patent: D233523 (1974-11-01), Sakamoto
patent: 1575912 (1926-03-01), Grant
patent: 2099118 (1937-11-01), Kennedy
patent: 2767408 (1956-10-01), Reibman
Diamond Donald
Largen James R.
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