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A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
A01G23/00—Forestry
A01G23/10—Tapping of tree-juices, e.g. caoutchouc, gum
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FR40519D1929-01-071931-07-22Procédé et appareils pour extraire et recueillir les produits d'élaboration et de secrétion des plantes
ExpiredFR40519E
(fr)
Procédé d'extraction de matières nutritives des herbacées employées comme matières premières pour la fabrication de pâtes à papier et de produits similaires