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Publication of BE550229ApublicationCriticalpatent/BE550229A/xx
B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
B41J7/00—Type-selecting or type-actuating mechanisms
B41J7/54—Selecting arrangements including combinations, permutation, summation, or aggregation means
B41J7/68—Selecting arrangements including combinations, permutation, summation, or aggregation means with means for selectively closing an electric circuit for type presentation