Norman D. Ligtenberg

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Cottage Grove, MN, US

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Patents Grantslast 30 patents

Information Patent Grant
Dielectric mirror retroreflective appliques having excellent repeti...
- Patent number 6,416,188
- Issue date Jul 9, 2002
- 3M Innovative Properties Company
- Jeanine M. Shusta
- G02 - OPTICS