|
| US4162190 | 8. Aug. 1977 | 24. Juli 1979 | Scapa-Porritt Limited | Paper makers wet felts |
| US4495680 | 17. Febr. 1982 | 29. Jan. 1985 | Appleton Mills | Method and apparatus for forming a helical wound substrate composed solely of longitudinal yarns |
| US4594756 | 20. Sept. 1983 | 17. Juni 1986 | Appleton Mills | Method and apparatus for producing a substrate composed solely of longitudinal yarns |
| US6630223 | 26. Jan. 2001 | 7. Okt. 2003 | Albany International Corp. | Spirally wound shaped yarns for paper machine clothing and industrial belts |
