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 Kristenson & Graehs AbfiledCriticalKristenson & Graehs Ab
Publication of CH286203ApublicationCriticalpatent/CH286203A/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
B24B3/33—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools of drills of drills for stone
Landscapes
Engineering & Computer Science
(AREA)
Mechanical Engineering
(AREA)
CH286203D1949-03-111950-02-20Schleifmaschine für Gesteinsbohrer.
CH286203A
(de)