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Publication of FR687764ApublicationCriticalpatent/FR687764A/fr
B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
B41J29/00—Details of, or accessories for, typewriters or selective printing mechanisms not otherwise provided for
B41J29/54—Locking devices applied to printing mechanisms
B41J29/58—Locking devices applied to printing mechanisms and automatically actuated
B41J29/68—Locking devices applied to printing mechanisms and automatically actuated by completion of a page or predetermined number of lines or exhaustion of paper to lock the keyboard
FR687764D1930-01-071930-01-07Dispositif d'arrêt pour le rouleau à papier de machines à écrire
ExpiredFR687764A
(fr)