Number | Name | Date | Kind |
---|---|---|---|
4279433 | Petaja | Jul 1981 | |
4535322 | Yeski | Aug 1985 | |
4603328 | Larson | Jul 1986 | |
4835523 | Pruett | May 1989 | |
5000482 | Cimino | Mar 1991 | |
5001461 | Vroom et al. | Mar 1991 | |
5235321 | Rowan et al. | Aug 1993 | |
5260689 | Meyers et al. | Nov 1993 | |
5324063 | Locantro | Jun 1994 |
Entry |
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5280, "Powder Tips", http://www.5280pub.com/library/0196/powdertips.html (1996). |