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Linus Siu-Yuen Siu
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Vancouver, British Columbia, CA
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last 30 patents
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Patent Grant
Method of making a bingo chip
Patent number
4,675,973
Issue date
Jun 30, 1987
Linus Siu-Yuen Siu
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL