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Publication of ES281850A1publicationCriticalpatent/ES281850A1/en
Perfections introduced in drills for deep holes, characterized by having a device arranged as close as possible to the starting point of the tool in the workpiece that is fixedly mounted on the frame and serves for the continuous axial advance of the bit for the drill of deep holes. (Machine-translation by Google Translate, not legally binding)
ES0281850A1961-10-281962-10-25Improvements introduced in the drills for deep holes (Machine-translation by Google Translate, not legally binding)
ExpiredES281850A1
(en)
Device for the realization of holes of different diameter to machines for drilling lathes and similar (Machine-translation by Google Translate, not legally binding)
Procedure of milling on lathe and assembly of the manufacture for application of the procedure (Machine-translation by Google Translate, not legally binding)