Number | Name | Date | Kind |
---|---|---|---|
3457416 | Elliott | Jul 1969 | |
3885879 | Louder et al. | May 1975 | |
3923399 | Brumley | Dec 1975 | |
4340303 | Grisar et al. | Jul 1982 | |
4375919 | Busch | Mar 1983 | |
4487504 | Goldsmith | Dec 1984 | |
4516832 | Jain et al. | May 1985 | |
4519707 | Kuffer | May 1985 |
Entry |
---|
Brochure/Rank Precision Industries, Inc., 12/1971, 8 pages. |