IP Library › Granted Patent US 4,896,971
Granted Patent Utility
US 4,896,971 · App. 07/031,307

Mixing apparatus

Inventors: Ronald J. Weetman, Richard Howk
Patented Case View Patent ↗
Granted: Jan 30, 1990 Filed: Mar 26, 1987
Inventors
Ronald J. Weetman
Richard Howk
Assignee (at issue)
Federal Signal Corporation

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Quick Facts
Patent No.
US 4,896,971
App. No.
07/031,307
Filed
1987-03-26
Granted
1990-01-30
Kind
A