Number | Date | Country | Kind |
---|---|---|---|
2615308 | Apr 1976 | DEX | |
2625540 | Jun 1976 | DEX |
Number | Name | Date | Kind |
---|---|---|---|
2443732 | Ipaheff et al. | Jun 1948 | |
2549508 | Mottern | Apr 1951 | |
3248428 | Porter et al. | Apr 1966 | |
3316303 | Mertzeweiller et al. | Apr 1967 | |
3379766 | Hwang et al. | Apr 1968 | |
3542878 | Swift | Nov 1970 | |
3746733 | Stapfer et al. | Jul 1973 | |
3876706 | Tevaneosky et al. | Apr 1975 | |
3946079 | Mizutani et al. | Mar 1976 | |
3948991 | Chum et al. | Apr 1976 | |
4005147 | Fischer et al. | Jan 1977 |
Number | Date | Country |
---|---|---|
1238453 | Apr 1967 | DEX |
1917244 | Oct 1970 | DEX |
2022365 | Nov 1970 | DEX |
2023512 | Feb 1971 | DEX |
1936203 | Sep 1971 | DEX |
2257675 | May 1974 | DEX |
1530898 | Jul 1967 | FRX |
1579809 | Aug 1969 | FRX |
2019319 | Jul 1970 | FRX |
Entry |
---|
Eschinazi, "Bull Soc. Chim," 1952: 967-969, (1952). |