Wai Cheung

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Middlesbrough, GB

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Patents Grantslast 30 patents

Information Patent Grant
Printing machines
- Patent number 6,516,720
- Issue date Feb 11, 2003
- AWI Licensing Company
- Wai Cheung
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Printing machine having reciprocating carriage carrying both cleani...
- Patent number 6,401,618
- Issue date Jun 11, 2002
- AWI Licensing Company
- Wai Cheung
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS

Patents Applicationslast 30 patents

Information Patent Application
Printing machines
- Publication number 20020088357
- Publication date Jul 11, 2002
- Armstrong World Industries, Inc.
- Wai Cheung
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS