IP Library › Granted Patent US 4,657,074
Granted Patent Utility
US 4,657,074 · App. 06/830,883

Heat exchanger for combustion heater

Inventors: Itizo Tomita, Eiji Okura
Patented Case View Patent ↗
Granted: Apr 14, 1987 Filed: Feb 19, 1986
Inventors
Itizo Tomita
Eiji Okura
Assignee (at issue)
Diesel Kiki Co., Ltd.

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Quick Facts
Patent No.
US 4,657,074
App. No.
06/830,883
Filed
1986-02-19
Granted
1987-04-14
Kind
A