IP Library › Granted Patent US 4,722,112
Granted Patent Utility
US 4,722,112 · App. 06/863,289

Roller back wiper

Inventors: Erwin L. Schaub, Frank J. Viola
Patented Case View Patent ↗
Granted: Feb 2, 1988 Filed: May 15, 1986
Inventors
Erwin L. Schaub
Frank J. Viola
Assignee (at issue)
Parker-Hannifin Corporation

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Quick Facts
Patent No.
US 4,722,112
App. No.
06/863,289
Filed
1986-05-15
Granted
1988-02-02
Kind
A