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L. Allan Butler
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Carlsbad, CA, US
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last 30 patents
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Patent Grant
Non-contact optical glide tester
Patent number
5,818,592
Issue date
Oct 6, 1998
Phase Metrics, Inc.
Kenneth Womack
G01 - MEASURING TESTING
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Patent Grant
Determining the complex refractive index phase offset in interferom...
Patent number
5,781,299
Issue date
Jul 14, 1998
Phase Metrics
Kenneth H. Womack
G11 - INFORMATION STORAGE