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Publication of DE262809CpublicationCriticalpatent/DE262809C/de
B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
B23Q16/00—Equipment for precise positioning of tool or work into particular locations not otherwise provided for
Verfahren zur Herstellung von Schlitzschrauben mit aus einem mittleren Loch im Schraubenkopf oder -kopfende bestehender Sicherung gegen Abrutschen des Schraubenziehers