Jian-Rung Cheng

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San-Chung City, Taipei Hsien, TW

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Patents Grantslast 30 patents

Information Patent Grant
Cushioning device with U-shaped strip portions
- Patent number 6,595,503
- Issue date Jul 22, 2003
- Jian-Rung Cheng
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...