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Duane C. Richardson — 1 Patent

3M: 1 patents #7,233 of 11,543Top 65%

Oakdale, MN: #244 of 368 inventorsTop 70%

Minnesota: #32,449 of 52,454 inventorsTop 65%

Overall (All Time): #3,462,640 of 4,157,543Top 85%

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Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
6964509	Task lighting system	John E. Gozum, Thomas J. Reid	2005-11-15