Matthew Walker

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Brisbane, AU

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Patents Grantslast 30 patents

Information Patent Grant
Method and device for visual code transaction verification
- Patent number 8,167,214
- Issue date May 1, 2012
- Matthew Walker
- G07 - CHECKING-DEVICES

Patents Applicationslast 30 patents

Information Patent Application
METHOD AND DEVICE FOR VISUAL CODE TRANSACTION VERIFICATION
- Publication number 20100228988
- Publication date Sep 9, 2010
- Matthew Walker
- G06 - COMPUTING CALCULATING COUNTING