IP Library › Granted Patent US 4,834,289
Granted Patent Utility
US 4,834,289 · App. 07/174,240

Pop-up sprinkler unit

Inventor: Edwin J. Hunter
Patented Case View Patent ↗
Granted: May 30, 1989 Filed: Mar 28, 1988
Inventor
Edwin J. Hunter

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Quick Facts
Patent No.
US 4,834,289
App. No.
07/174,240
Filed
1988-03-28
Granted
1989-05-30
Kind
A