Number | Date | Country | Kind |
---|---|---|---|
2-226679 | Aug 1990 | JPX | |
2-226680 | Aug 1990 | JPX | |
2-226681 | Aug 1990 | JPX |
Number | Name | Date | Kind |
---|---|---|---|
3819514 | Clampitt | Jun 1974 | |
3901236 | Assarsson et al. | Aug 1975 | |
4235237 | Mesek | Nov 1980 | |
4354487 | Oczkowski | Oct 1982 | |
4497710 | Wagu | Feb 1985 | |
4784892 | Storey et al. | Nov 1988 | |
4885204 | Bither et al. | Dec 1989 | |
4897297 | Zafiroglu | Jan 1990 |
Number | Date | Country |
---|---|---|
0192216 | Aug 1986 | EPX |
210968 | Feb 1987 | EPX |
0317058 | May 1989 | EPX |
0339461 | Nov 1989 | EPX |
0359615 | Mar 1990 | EPX |
2153358 | May 1973 | FRX |
2513895 | Oct 1982 | FRX |
2176815 | Jan 1987 | GBX |
2214201 | Aug 1989 | GBX |
Entry |
---|
Pulp Synthetic, vol. 19, pp. 420-423. |
Synthetic pulp, Terence W. Rave, Chemtech, Jan. 1985, pp. 54-63. |