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Publication of BE333858ApublicationCriticalpatent/BE333858A/xx
B41J35/12—Vibrator mechanisms; Driving gear therefor adjustable, e.g. for case shift
B41J35/14—Vibrator mechanisms; Driving gear therefor adjustable, e.g. for case shift for multicolour work; for ensuring maximum life of ink ribbon; for rendering ink-ribbon inoperative