Number | Date | Country | Kind |
---|---|---|---|
4023056 | Jul 1990 | DEX |
Number | Name | Date | Kind |
---|---|---|---|
3953510 | Smith et al. | Apr 1976 | |
4625062 | Nagata et al. | Nov 1986 |
Number | Date | Country |
---|---|---|
2617808 | Mar 1977 | DEX |
2555575 | May 1985 | FRX |
Entry |
---|
CA:88:169698m Tsenyuga et al., (1978, Jun.). |