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James L. Hill
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Phoenix, AZ, US
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Patents Grants
last 30 patents
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Patent Grant
Closure security seal with time-recording feature
Patent number
7,109,847
Issue date
Sep 19, 2006
James W. Hill
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
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Patent Grant
Closure security seal with time-recording feature
Patent number
6,933,844
Issue date
Aug 23, 2005
Quent Augspurger
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
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Patent Grant
System for detecting the siren of an approaching emergency vehicle
Patent number
5,287,411
Issue date
Feb 15, 1994
James L. Hill
G08 - SIGNALLING
Patents Applications
last 30 patents
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Patent Application
Closure security seal with time-recording feature
Publication number
20040008585
Publication date
Jan 15, 2004
Quent Augspurger
G04 - HOROLOGY