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- Court of Appeals for the Federal Circuit | Wednesday, July 29, 1987 | Cited 0 times
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- Court of Appeals for the Federal Circuit | Monday, March 14, 1988 | Cited 0 times
- Court of Appeals for the Federal Circuit | Wednesday, September 17, 1997 | Cited 0 times
- Supreme Court of the United States | Wednesday, March 4, 1992 | Cited 0 times
- Court of Appeals for the Federal Circuit | Thursday, December 14, 2000 | Cited 0 times