Mai Huang

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Washington, PA, US

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Patents Grantslast 30 patents

Information Patent Grant
Rigid sheet metal end closure with integral opener
- Patent number D425419
- Issue date May 23, 2000
- Weirton Steel Corporation
- Mai Huang
- D09 - Packages and containers for goods
Information Patent Grant
Rigid sheet metal end closure with integral opener
- Patent number D422911
- Issue date Apr 18, 2000
- Weirton Steel Corporation
- Mai Huang
- D09 - Packages and containers for goods