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LEBLANC ADOLPHE DELPHIN
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LEBLANC ADOLPHE DELPHIN
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Filing date
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Application filed by LEBLANC ADOLPHE DELPHINfiledCriticalLEBLANC ADOLPHE DELPHIN
Application grantedgrantedCritical
Publication of FR327925ApublicationCriticalpatent/FR327925A/en
B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
B23B—TURNING; BORING
B23B51/00—Tools for drilling machines
B23B51/02—Twist drills
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Engineering & Computer Science
(AREA)
Mechanical Engineering
(AREA)
FR327925D1902-07-181902-07-18
Improvements in the ratchet mechanism specially adapted to certain instruments for working wood and metal
ExpiredFR327925A
(en)