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Publication of JPS4919921ApublicationCriticalpatent/JPS4919921A/ja
B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
B41J1/00—Typewriters or selective printing mechanisms characterised by the mounting, arrangement or disposition of the types or dies
B41J1/60—Typewriters or selective printing mechanisms characterised by the mounting, arrangement or disposition of the types or dies with types or dies on spherical, truncated-spherical, or like surfaces