Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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
B21D53/48—Making other particular articles haberdashery, e.g. buckles, combs; pronged fasteners, e.g. staples buttons, e.g. press-buttons, snap fasteners
Verfahren zum maschinellen Herstellen von einer zugleich als Isolation dienenden und an den Boeden und den Halsstirnflaechen engmaschig und auf den dazwischenliegenden Strecken weitmaschig auszufuehrenden Umflechtung bei Kohlepuppen galvanischer Elemente