IP Library › Granted Patent US 4,918,608
Granted Patent Utility
US 4,918,608 · App. 07/204,508

Method for automatic depth control for earth moving and grading

Inventors: Christopher O. Middleton, Colin L. Robson
Patented Case View Patent ↗
Granted: Apr 17, 1990 Filed: Jun 9, 1988
Inventors
Christopher O. Middleton
Colin L. Robson

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Quick Facts
Patent No.
US 4,918,608
App. No.
07/204,508
Filed
1988-06-09
Granted
1990-04-17
Kind
A