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last 30 patents
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Patent Grant
Calibration and verification structures for use in optical proximit...
Patent number
8,161,421
Issue date
Apr 17, 2012
International Business Machines Corporation
Ramya Viswanathan
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Patents Applications
last 30 patents
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Patent Application
CALIBRATION AND VERIFICATAION STRUCTURES FOR USE IN OPTICAL PROXIMI...
Publication number
20100005440
Publication date
Jan 7, 2010
International Business Machines Corporation
Ramya Viswanathan
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY