Number | Name | Date | Kind |
---|---|---|---|
1395877 | Tillotson | Nov 1921 | |
1584557 | Koch | May 1926 | |
3126584 | Pearson | Mar 1964 | |
3133834 | Sowiak | May 1964 | |
3402698 | Kojima et al. | Sep 1968 | |
3501812 | Schmidt | Mar 1970 | |
3703395 | Drexler et al. | Nov 1972 | |
3739749 | Kangas et al. | Jun 1973 |
Number | Date | Country |
---|---|---|
4,017,228 | Aug 1965 | JP |
Entry |
---|
Willis et al., Cotton Carding, Washington, D.C., The Textile Foundation, 1936, Chapter 6, p. 81. |