Stephen A. Johnson

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Oakdale, MN, US

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Patents Grantslast 30 patents

Information Patent Grant
Video recording tapes suitable for high speed contact duplication
- Patent number 5,705,253
- Issue date Jan 6, 1998
- Minnesota Mining and Manufacturing Company
- Alvin M. Berg
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...