Duane C. Richardson

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Oakdale, MN, US

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Patents Grantslast 30 patents

Information Patent Grant
Task lighting system
- Patent number 6,964,509
- Issue date Nov 15, 2005
- 3M Innovative Properties Company
- John E. Gozum
- F21 - LIGHTING

Patents Applicationslast 30 patents

Information Patent Application
TASK LIGHTING SYSTEM
- Publication number 20050128769
- Publication date Jun 16, 2005
- 3M Innovative Properties
- John E. Gozum
- G02 - OPTICS