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D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
D01B—MECHANICAL TREATMENT OF NATURAL FIBROUS OR FILAMENTARY MATERIAL TO OBTAIN FIBRES OF FILAMENTS, e.g. FOR SPINNING
D01B3/00—Mechanical removal of impurities from animal fibres
D01B3/04—Machines or apparatus for washing or scouring loose wool fibres
D01B3/08—Machines or apparatus for washing or scouring loose wool fibres with longitudinal movement of either wool or liquid
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FR728269D1931-01-091931-12-15Perfectionnements aux machines pour le dégraissage de la laine ou autres fibres animales, ou de fibres végétales
ExpiredFR728269A
(fr)