Irving C. Chen

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Hong Kong, HK

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Patents Grantslast 30 patents

Information Patent Grant
Insertless perforated mill roll
- Patent number 5,655,717
- Issue date Aug 12, 1997
- Irving Chung-Chi Chen
- C13 - SUGAR INDUSTRY
Information Patent Grant
Insertless perforated mill roll
- Patent number 5,369,884
- Issue date Dec 6, 1994
- Irving C. Chen
- C13 - SUGAR INDUSTRY