Vivian Yuhsi Chan

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Arcadia, CA, US

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Patents Applicationslast 30 patents

Information Patent Application
Protective Mask and Manufacturing Method Thereof
- Publication number 20220007756
- Publication date Jan 13, 2022
- Vivian CHAN
- A41 - WEARING APPAREL
Information Patent Application
Brassiere
- Publication number 20120135667
- Publication date May 31, 2012
- Vivian Yuhsi Chan
- A41 - WEARING APPAREL