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Priority to FR809882ApriorityCriticalpatent/FR1245067A/en
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Publication of FR1245067ApublicationCriticalpatent/FR1245067A/en
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
B23B49/04—Devices for boring or drilling centre holes in workpieces
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FR809882A1959-11-121959-11-12
Dressing, turning and drilling head, in particular for centering machines
ExpiredFR1245067A
(en)