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B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
B23B—TURNING; BORING
B23B29/00—Holders for non-rotary cutting tools; Boring bars or boring heads; Accessories for tool holders
B23B29/04—Tool holders for a single cutting tool
B23B29/12—Special arrangements on tool holders
B23B29/16—Special arrangements on tool holders for supporting the workpiece in a backrest
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FR547109D1921-04-221922-02-11
Improvements made in the establishment of instruments for rectifying journals or performing similar operations
ExpiredFR547109A
(en)