Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Element or attachment – not elsewhere specified
Patent
1977-02-09
1978-06-27
Largen, James R.
Environmental heating and cooling; fluid handling and sanitary e
Heating or cooling
Element or attachment, not elsewhere specified
D2301
Patent
active
D02483130
REFERENCES:
patent: D203378 (1965-12-01), Harold
patent: D238424 (1976-01-01), Schoepe et al.
patent: 3369259 (1968-02-01), Harold
patent: 3462767 (1969-08-01), Schultz et al.
patent: 3675249 (1972-07-01), Breen
patent: 3795016 (1974-03-01), Eastman
patent: 3955218 (1976-05-01), Ramsey
patent: 4002521 (1977-01-01), Schoepe et al.
Largen James R.
Nienow Harvey C.
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