Number | Name | Date | Kind |
---|---|---|---|
3705799 | Bello et al. | Dec 1972 | |
3705801 | Holtz | Dec 1972 | |
3715208 | Lestina et al. | Feb 1973 | |
3869287 | Sakai et al. | Apr 1975 | |
4075021 | Kikuchi et al. | Feb 1978 | |
4216284 | Sakai et al. | Aug 1980 |
Number | Date | Country |
---|---|---|
2651941 | May 1978 | DEX |
Entry |
---|
Research Disclosure, No. 11,449, Oct., 1973. |