Number | Date | Country | Kind |
---|---|---|---|
8316445 | Jun 1983 | GBX |
Number | Name | Date | Kind |
---|---|---|---|
3956421 | Roberts et al. | May 1976 | |
3963512 | Swift et al. | Jun 1976 | |
4222780 | Shibatani et al. | Sep 1980 | |
4259117 | Yamauchi et al. | Mar 1981 | |
4374937 | Nemcek et al. | Feb 1983 | |
4407984 | Ratcliffe et al. | Oct 1983 | |
4439380 | Michl et al. | Mar 1984 | |
4442239 | Tsunekawa et al. | Apr 1984 |
Number | Date | Country |
---|---|---|
7107703 | Feb 1971 | JPX |
Entry |
---|
Chemical Abstracts, 1980, vol. 93(b), p. 467, No. 54013v. |
C.A. 89-46097 (1978) Mead et al, Texas Inst. |
C.A. 76-113899 (1972) Kosugi et al, JP71-40686. |