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Publication of FR904191ApublicationCriticalpatent/FR904191A/fr
B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
B21D53/00—Making other particular articles
B21D53/46—Making other particular articles haberdashery, e.g. buckles, combs; pronged fasteners, e.g. staples
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FR904191D1944-05-111944-05-11Procédé et outillage pour la fabrication de peignes, et peignes conformes à ceux obtenus par ce procédé et cet outillage
ExpiredFR904191A
(fr)
Procédé pour la fabrication de 5-amino-4-chloro-2-phényl-pyridazine-3-one pure ainsi que les produits conformes à ceux obtenus par le présent procédé ou procédé similaire