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Filing date
Publication date
Application filed by Unger PaulfiledCriticalUnger Paul
Publication of CH140788ApublicationCriticalpatent/CH140788A/de
B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
B23D73/00—Making files or rasps
B23D73/04—Methods or machines for the manufacture of files or rasps
B23D73/08—Milling, planing, slotting, knurling, or broaching the working surfaces
Landscapes
Engineering & Computer Science
(AREA)
Manufacturing & Machinery
(AREA)
Mechanical Engineering
(AREA)
CH140788D1929-08-151929-08-15Verfahren und Vorrichtung zur Erzeugung der Zähne an Feilen, Sägen und andern Werkzeugen.
CH140788A
(de)