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Kelvin Isaacson
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Edmonton, CA
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Patents Grants
last 30 patents
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Patent Grant
Internally retained jaw roller pin
Patent number
8,479,614
Issue date
Jul 9, 2013
McCoy Corporation
Murray Gerwing
Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
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Patent Grant
Internally retained jaw roller pin
Patent number
8,234,957
Issue date
Aug 7, 2012
McCoy Corporation
Murray Gerwing
Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Patents Applications
last 30 patents
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Patent Application
Internally Retained Jaw Roller Pin
Publication number
20130014612
Publication date
Jan 17, 2013
Murray Gerwing
E21 - EARTH DRILLING MINING
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Patent Application
Internally Retained Jaw Roller Pin
Publication number
20110067533
Publication date
Mar 24, 2011
Murray Gerwing
E21 - EARTH DRILLING MINING