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Mikhail Gelfand
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Milford, CT, US
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last 30 patents
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Patent Grant
Solids measurement system
Patent number
6,480,009
Issue date
Nov 12, 2002
GL&V/ Dorr-Oliver Inc.
Mikhail Gelfand
G01 - MEASURING TESTING
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Patent Grant
Friction hinge with detent capability
Patent number
5,918,348
Issue date
Jul 6, 1999
TorqMaster, Inc.
David A. Carpenter
G06 - COMPUTING CALCULATING COUNTING
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Patent Grant
Equilibrated hinge with variable frictional torque
Patent number
5,771,540
Issue date
Jun 30, 1998
TorqMaster, Inc.
David A. Carpenter
G06 - COMPUTING CALCULATING COUNTING