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Robert A. Campman
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Greenville, PA, US
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Patents Grants
last 30 patents
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Patent Grant
Automated accountability locating system
Patent number
7,538,666
Issue date
May 26, 2009
Grace Industries, Inc.
Robert A. Campman
G07 - CHECKING-DEVICES
Patents Applications
last 30 patents
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Patent Application
Automated accountability locating system
Publication number
20080061962
Publication date
Mar 13, 2008
GRACE INDUSTRIES, INC.
Robert A. Campman
G07 - CHECKING-DEVICES