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last 30 patents
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Patent Grant
Method and apparatus for self-monitoring of proximity sensors
Patent number
6,835,923
Issue date
Dec 28, 2004
Nokia Corporation
Tiina Hämäläinen
G01 - MEASURING TESTING
Patents Applications
last 30 patents
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Patent Application
Method and apparatus for self-monitoring of proximity sensors
Publication number
20030094566
Publication date
May 22, 2003
Tiina Hamalainen
H03 - BASIC ELECTRONIC CIRCUITRY