Number | Name | Date | Kind |
---|---|---|---|
3159581 | Diehl | Dec 1964 | |
4233171 | McLaughlin et al. | Nov 1980 | |
4392975 | Tourdot et al. | Jul 1983 | |
4664837 | Gray | May 1987 | |
4696850 | Malik | Sep 1987 | |
5266690 | McCurry, Jr. et al. | Nov 1993 | |
5525256 | Morris et al. | Jun 1996 |
Entry |
---|
U.S. S.I.R. H468, May 1988. |