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John M. Tamkin
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Oro Valley, AZ, US
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last 30 patents
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Patent Grant
Chevron correction and autofocus optics for laser scanner
Patent number
6,107,622
Issue date
Aug 22, 2000
Etec Systems, Inc.
Shi-Kay Yao
G02 - OPTICS
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Patent Grant
High efficiency laser pattern generator
Patent number
6,084,706
Issue date
Jul 4, 2000
Etec Systems, Inc.
John M. Tamkin
G02 - OPTICS