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WAGNER MASCHF GUSTAV
Original Assignee
WAGNER MASCHF GUSTAV
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Application filed by WAGNER MASCHF GUSTAVfiledCriticalWAGNER MASCHF GUSTAV
Publication of FR2290980A1publicationCriticalpatent/FR2290980A1/fr
Application grantedgrantedCritical
Publication of FR2290980B3publicationCriticalpatent/FR2290980B3/fr
B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
B23B—TURNING; BORING
B23B41/00—Boring or drilling machines or devices specially adapted for particular work; Accessories specially adapted therefor
B23B41/003—Boring or drilling machines or devices specially adapted for particular work; Accessories specially adapted therefor for drilling elongated pieces, e.g. beams
B—PERFORMING OPERATIONS; TRANSPORTING
B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
B23B—TURNING; BORING
B23B39/00—General-purpose boring or drilling machines or devices; Sets of boring and/or drilling machines
B23B39/16—Drilling machines with a plurality of working-spindles; Drilling automatons
B23B39/22—Drilling machines with a plurality of working-spindles; Drilling automatons with working-spindles in opposite headstocks
Landscapes
Engineering & Computer Science
(AREA)
Mechanical Engineering
(AREA)
Earth Drilling
(AREA)
FR7502347A1974-11-141975-01-24Perceuse, notamment pour eclisses de raccordement de rails de chemin de fer
GrantedFR2290980A1
(fr)