David M. Graham

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Jacksonville, FL, US

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Patents Grantslast 30 patents

Information Patent Grant
Ergonomic backpack
- Patent number 8,678,253
- Issue date Mar 25, 2014
- David M. Graham
- A45 - HAND OR TRAVELLING ARTICLES

Patents Applicationslast 30 patents

Information Patent Application
Ergonomic Backpack
- Publication number 20130119104
- Publication date May 16, 2013
- David M. Graham
- A45 - HAND OR TRAVELLING ARTICLES