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Application filed by Amiet OscarfiledCriticalAmiet Oscar
Publication of CH289138ApublicationCriticalpatent/CH289138A/fr
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
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Engineering & Computer Science
(AREA)
Mechanical Engineering
(AREA)
CH289138D1950-06-021950-06-02Appareil pour l'affûtage de forets, notamment pour l'affûtage à quatre faces.
CH289138A
(fr)