IP Library › Granted Patent US 5,276,933
Granted Patent Utility
US 5,276,933 · App. 07/909,222

Damage resistant recirculation flap

Inventors: Robert D. Hennessey, Michael S. Wilmo
Patented Case View Patent ↗
Granted: Jan 11, 1994 Filed: Jul 2, 1992
Inventors
Robert D. Hennessey
Michael S. Wilmo
Assignee (at issue)
TENNANT COMPANY

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Quick Facts
Patent No.
US 5,276,933
App. No.
07/909,222
Filed
1992-07-02
Granted
1994-01-11
Kind
A