Number | Name | Date | Kind |
---|---|---|---|
D233611 | Kramer et al. | Nov 1974 | |
D246584 | Bhat et al. | Dec 1977 | |
D256238 | Akazawa | Aug 1980 | |
D291563 | Perry | Aug 1987 | |
D292206 | Watanabe | Oct 1987 | |
D297325 | Engstrom et al. | Aug 1988 | |
D298944 | Stark et al. | Dec 1988 | |
D300135 | Alvarez et al. | Mar 1989 | |
D303114 | Danielson et al. | Aug 1989 | |
D303115 | Hart et al. | Aug 1989 | |
D306015 | Pulio, Jr. | Feb 1990 | |
D306443 | Leh-Chuan Su | Mar 1990 | |
3598920 | Fischer et al. | Aug 1971 | |
4587379 | Masuda | May 1986 | |
4759050 | Akiyama | Jul 1988 | |
4860336 | D'Avello et al. | Aug 1989 |