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B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
B23B—TURNING; BORING
B23B49/00—Measuring or gauging equipment on boring machines for positioning or guiding the drill; Devices for indicating failure of drills during boring; Centering devices for holes to be bored
B23B49/003—Stops attached to drilling tools, tool holders or drilling machines
B23B49/005—Attached to the drill
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FR26869D1922-09-151922-09-15Perfectionnements apportés dans l'établissement des tarières
ExpiredFR26869E
(fr)