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Application filed by Affolter PierrefiledCriticalAffolter Pierre
Publication of CH247274ApublicationCriticalpatent/CH247274A/fr
B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
B21G—MAKING NEEDLES, PINS OR NAILS OF METAL
B21G1/00—Making needles used for performing operations
B21G1/02—Making needles used for performing operations of needles with eyes, e.g. sewing-needles, sewing-awls
B21G1/04—Making needles used for performing operations of needles with eyes, e.g. sewing-needles, sewing-awls of needles specially adapted for use in machines or tools
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Engineering & Computer Science
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Mechanical Engineering
(AREA)
CH247274D1945-09-121945-09-12Procédé de fabrication d'aiguilles pour machines à coudre.
CH247274A
(fr)