Number | Date | Country | Kind |
---|---|---|---|
197 00 648 | Jan 1997 | DEX |
Number | Name | Date | Kind |
---|---|---|---|
3710933 | Fulwyler et al. | Jan 1973 | |
5408307 | Yamamoto et al. | Apr 1995 | |
5486904 | Horn et al. | Jan 1996 | |
5757476 | Nakamoto et al. | May 1998 |
Entry |
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Wilken et al., Mitt. aus dem Papier. Inst., vol. 11-12, 1984, pp. 292-307. |
Kroehl et al., Nordic Pulp and Paper Research Journal, vol. 9, 1994, No. 1, pp. 26-30, 36. |