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Fang C. Ho
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Gloucester, CA
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last 30 patents
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Patent Grant
Form depicting, optical interference authenticating device
Patent number
5,009,486
Issue date
Apr 23, 1991
Canadian Patents and Development Limited/Societe Canadienne des Brevets et d'...
Jerzy A. Dobrowolski
B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER