Number | Date | Country | Kind |
---|---|---|---|
3151648 | Dec 1981 | DEX |
Number | Name | Date | Kind |
---|---|---|---|
3640674 | Berrie et al. | Feb 1972 | |
3905951 | Berrie et al. | Sep 1951 |
Number | Date | Country |
---|---|---|
0038439 | Oct 1981 | EPX |
0083313 | Jul 1983 | EPX |
2753235 | Jun 1978 | DEX |
3012863 | Oct 1981 | DEX |
1282384 | Jul 1972 | GBX |
Entry |
---|
Biedermann, J. Soc. Dyers Colourists, vol. 87, pp. 105 to 111 (1971). |