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Walter Mantegazza
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Milan, IT
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last 30 patents
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Patent Grant
Document with anti-counterfeiting means to prevent reproducibility...
Patent number
5,868,432
Issue date
Feb 9, 1999
Mantegazza Antonio Arti Grafiche S.r.l.
Walter Mantegazza
B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
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Patent Grant
Document with anti-forgery and anti-falsification means
Patent number
5,855,989
Issue date
Jan 5, 1999
Walter Mantegazza
B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER