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David P. Montbriand
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Hudson, WI, US
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last 30 patents
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Patent Grant
Magnetic tag deactivator for pre-existing check-out counters
Patent number
5,410,296
Issue date
Apr 25, 1995
Minnesota Mining and Manufacturing Company
David P. Montbriand
G08 - SIGNALLING
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Patent Grant
Optical information storage disk for use with electronic article su...
Patent number
5,347,508
Issue date
Sep 13, 1994
Minnesota Mining and Manufacturing Company
David P. Montbriand
G08 - SIGNALLING