Karl N. Johnson

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Frederick, CO, US

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Patents Grantslast 30 patents

Information Patent Grant
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- Patent number 9,933,239
- Issue date Apr 3, 2018
- Karl N. Johnson
- F42 - AMMUNITION BLASTING

Patents Applicationslast 30 patents

Information Patent Application
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- Publication number 20140364256
- Publication date Dec 11, 2014
- Karl N. Johnson
- F42 - AMMUNITION BLASTING