Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Element or attachment – not elsewhere specified
Patent
1977-09-06
1980-04-15
Largen, James R.
Environmental heating and cooling; fluid handling and sanitary e
Heating or cooling
Element or attachment, not elsewhere specified
D2304
Patent
active
D02547503
REFERENCES:
patent: D188225 (1960-06-01), Anderson
patent: D191241 (1961-08-01), Anderson et al.
patent: D192589 (1962-04-01), Katzman
patent: D198381 (1964-10-01), Katzman et al.
patent: D198558 (1964-06-01), Grube
patent: D202084 (1965-08-01), Storch
Luedtke Eugene R.
Myklebust Paal
Gerber Products Company
Largen James R.
Townsend Stephen S.
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