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- Court of Appeals for the Federal Circuit | Friday, April 29, 2011 | Cited 0 times
- Court of Appeals for the Seventh Circuit | Tuesday, September 1, 1992 | Cited 0 times
- Illinois Supreme Court | Thursday, May 20, 2010 | Cited 0 times
- Illinois Supreme Court | Friday, October 19, 1984 | Cited 0 times
- Court of Appeals for the Seventh Circuit | Monday, September 20, 1982 | Cited 0 times