Number | Date | Country | Kind |
---|---|---|---|
5608/84 | Nov 1984 | CHX | |
2363/85 | Jun 1985 | CHX |
Number | Name | Date | Kind |
---|---|---|---|
3177252 | Leon et al. | Apr 1965 | |
3219528 | Leon et al. | Nov 1965 | |
4559349 | Storni | Dec 1985 |
Number | Date | Country |
---|---|---|
183190 | Jun 1986 | EPX |
3407654 | Sep 1984 | DEX |
A085707 | Aug 1965 | FRX |
Entry |
---|
Abstract of Japan, 50157336, 6/4/74. |
Abstract of Netherlands, 7204539, 4/6/71. |