IP Library › Granted Patent US 4,404,640
Granted Patent Utility
US 4,404,640 · App. 06/238,710

Grinding mill monitoring instrumentation

Inventors: Robert F. Dumbeck, Phillip W. Welch
Patented Case View Patent ↗
Granted: Sep 13, 1983 Filed: Feb 27, 1981
Inventors
Robert F. Dumbeck
Phillip W. Welch
Assignee (at issue)
W. R. Grace & Co.

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Quick Facts
Patent No.
US 4,404,640
App. No.
06/238,710
Filed
1981-02-27
Granted
1983-09-13
Kind
A