Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Birger Hoegfors Hans FredrikfiledCriticalBirger Hoegfors Hans Fredrik
Publication of CH258927ApublicationCriticalpatent/CH258927A/de
B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
B24B3/00—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools
B24B3/24—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools of drills
B24B3/247—Supports for drills
Landscapes
Engineering & Computer Science
(AREA)
Mechanical Engineering
(AREA)
CH258927D1946-02-081947-02-07Verfahren zum Schleifen von Spiralbohrern und Vorrichtung zur Durchführung desselben.
CH258927A
(de)