Shi-Chang Lee

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Kaohsiung County, TW

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Patents Applicationslast 30 patents

Information Patent Application
METHOD OF MAKING A WASHER
- Publication number 20110034259
- Publication date Feb 10, 2011
- CHUN ZU MACHINERY INDUSTRY CO., LTD.
- Shi-Chang Lee
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...