Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Element or attachment – not elsewhere specified
Patent
1980-12-22
1983-02-15
Kemper, Catherine E.
Environmental heating and cooling; fluid handling and sanitary e
Heating or cooling
Element or attachment, not elsewhere specified
D2303
Patent
active
D02679701
REFERENCES:
patent: D90741 (1933-09-01), Twombly
patent: D153572 (1949-04-01), Wilber et al.
patent: D225851 (1973-01-01), Cowan
patent: D259892 (1981-07-01), Boekamp
patent: D261923 (1981-11-01), Nunez et al.
Printed matter entitled: "Jet-Propelled Heater".
Printed matter entitled: "New Heaters Hit Market".
Printed matter entitled: "NESCO Two-Way-Action".
Printed matter entitled: "Circa 1925".
Printed matter of: Boekamp, Inc.
Clark George R.
Dean Clifford A.
Kemper Catherine E.
Rose Neil M.
Sunbeam Corporation
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