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B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
B29B7/00—Mixing; Kneading
B29B7/002—Methods
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FR681168D1929-07-101929-07-10Procédé pour l'obtention de matières à base de résine artificielle
ExpiredFR681168A
(fr)