Subclass | Subgroup | Patent |
D01F | 1/09 | 12168840 |
D04H | 1/46 | 12168841 |
1/587 | 12168842 | |
3/007 | 12168843 | |
D06F | 35/00 | 12168844 |
37/266 | 12168845 | |
39/028 | 12168846 | |
39/04 | 12168847 | |
43/083 | 12168848 | |
58/24 | 12168849 | |
D21F | 1/0036 | 12168850 |
7/08 | 12168851 | |
D21H | 11/18 | 12168852 |
21/16 | 12168853 | |
27/002 | 12168854 |