Kenneth Crabtree

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Saugus, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Cursor apparatus for interactive graphic display system
- Patent number 4,354,102
- Issue date Oct 12, 1982
- The United States of America as represented by the Secretary of the Air Force
- Richard H. Burns
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Method and apparatus for sensing the position of a writing laser beam
- Patent number 4,213,704
- Issue date Jul 22, 1980
- The Singer Company
- Richard H. Burns
- G01 - MEASURING TESTING