Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Element or attachment – not elsewhere specified
Patent
1975-08-08
1978-01-24
Burke, Wallace R.
Environmental heating and cooling; fluid handling and sanitary e
Heating or cooling
Element or attachment, not elsewhere specified
D2303
Patent
active
D02470454
REFERENCES:
patent: 3706446 (1972-12-01), Briggs
DE/Journal, Oct. 1974, p. A-30, "Century" portable oil heater.
Bloom Jerome P.
Burke Wallace R.
Koehring Company
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