IP Library › Granted Patent US 5,235,142
Granted Patent Utility
US 5,235,142 · App. 07/760,563

Phase reference system for cordless looping digitizer

Inventors: Waldo L. Landmeier, James S. Watson
Patented Case View Patent ↗
Granted: Aug 10, 1993 Filed: Sep 16, 1991
Inventors
Waldo L. Landmeier
James S. Watson
Assignee (at issue)
CalComp Inc.

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Quick Facts
Patent No.
US 5,235,142
App. No.
07/760,563
Filed
1991-09-16
Granted
1993-08-10
Kind
A