Number | Date | Country | Kind |
---|---|---|---|
50/133345 | Nov 1975 | JPX | |
50/145280 | Dec 1975 | JPX |
Number | Name | Date | Kind |
---|---|---|---|
2745878 | Mavity | Jan 1956 | |
3450771 | Dombro | Jan 1969 | |
3470257 | Sparks | Jan 1969 |
Entry |
---|
Hansch et al., JACS, 72 (1950), 4810. |
Vogel, JCS, (1948), 1820. |