Chao-Yang Tsai

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Chien-Chen Dist., Kaohsiung City, TW

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Patents Grantslast 30 patents

Information Patent Grant
Expansion bolt assembly
- Patent number 6,457,922
- Issue date Oct 1, 2002
- Chao-Yang Tsai
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...