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John H. Allen, JR.
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Durham, ME, US
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last 30 patents
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Patent number
7,669,338
Issue date
Mar 2, 2010
John H. Allen, Jr.
G01 - MEASURING TESTING
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last 30 patents
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Publication number
20090151177
Publication date
Jun 18, 2009
John H. Allen, JR.
G01 - MEASURING TESTING