Peter-John Webster

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Randburg, ZA

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Patents Grantslast 30 patents

Information Patent Grant
Method and apparatus for determining the location of graduated mark...
- Patent number 4,484,071
- Issue date Nov 20, 1984
- Peter-John Webster
- G01 - MEASURING TESTING
Information Patent Grant
Method and apparatus for measuring the displacement of a radiation-...
- Patent number 4,463,259
- Issue date Jul 31, 1984
- Peter-John Webster
- G01 - MEASURING TESTING