Version: 2024.08
Loading Scheme...
CPC | COOPERATIVE PATENT CLASSIFICATION | |||
| D01C | CHEMICAL OR BIOLOGICAL TREATMENT OF NATURAL FILAMENTARY OR FIBROUS MATERIAL TO OBTAIN FILAMENTS OR FIBRES FOR SPINNING; CARBONISING RAGS TO RECOVER ANIMAL FIBRES [2023-01] NOTE
|
D01C 1/00 | Treatment of vegetable material [2013-01] |
D01C 1/02 | . | by chemical methods to obtain bast fibres [2017-08] |
D01C 1/04 | . | Bacteriological retting [2013-01] |
D01C 3/00 | Treatment of animal material, e.g. chemical scouring of wool [2023-01] |
D01C 3/02 | . | De-gumming silk [2013-01] |
D01C 5/00 | Carbonising rags to recover animal fibres [2023-01] |