Self-sealed irrigation system

University of Texas System

University: University of Texas System
Assignee: Board Of Regents Of The University Of Texas
Inventor: William J. Thrash
Priority date: January 27, 1995
Filing date: December 17, 2001
Grant date: October 28, 2003
Publication date: October 28, 2003
Language: en
PDF source: https://patentimages.storage.googleapis.com/6a/3d/ee/1dc3652187fb5f/US6638236.pdf
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