IP Library › Granted Patent US 4,796,809
Granted Patent Utility
US 4,796,809 · App. 07/049,843

Two-stage pop-up sprinkler

Inventor: Edwin J. Hunter
Patented Case View Patent ↗
Granted: Jan 10, 1989 Filed: May 15, 1987
Inventor
Edwin J. Hunter

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Quick Facts
Patent No.
US 4,796,809
App. No.
07/049,843
Filed
1987-05-15
Granted
1989-01-10
Kind
A