Electric radiant heater

Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Portable

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D03052605

REFERENCES:
patent: D289547 (1987-04-01), Nakamura
patent: D289679 (1987-05-01), Nakamura
patent: D290036 (1987-05-01), Nakamura
patent: D290391 (1987-06-01), Nakamura
patent: D291350 (1987-08-01), Sherman et al.
patent: 2456781 (1948-12-01), Hardey
patent: 2469234 (1949-05-01), Lindberg et al.
patent: 3051820 (1962-08-01), Krichton
Markel Electric Products, Inc. Catalogue, Mar. 1968, p. 15, Portable Electric Heetaires, 40 series, 310 series, 240 volt portable heetaire, top and bottom right side of page.

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