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Bernard J. Perrette
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St. Francois d'Assise, 78 La-Celle-Saint-Cloud, FR
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last 30 patents
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Data medium scanning process and apparatus
Patent number
4,163,157
Issue date
Jul 31, 1979
Traitement de l'Information et Techniques Nouvelles
Claude F. Guignard
G06 - COMPUTING CALCULATING COUNTING