Abstract: A distributed system (10) for issuing official stamps and/or titles (25), particularly stamps, comprising a central control unit or Service Centre (12), a plurality of local terminals (11) distributed throughout the land for materially issuing the official stamps and/or titles (25), and a plurality of smart cards (21) assigned to the operators of the local terminals (11), in which an initialization programme (40) is provided for initialising, in combination, a given local terminal (11) and a given smart card (21) of the system (10), in order to establish between that given terminal (11) and that given smart card (21) a bi-unequivocal type relationship of correspondence and cooperation, so that the given local terminal (11) and the given smart card (21), once initialised, are enabled within the system (10) to cooperate uniquely between one another to the exclusion of all other terminals and all other smart cards.

Abstract: A distributed system (10) for issuing official stamps and/or titles (25), particularly stamps, comprising a central control unit or Service Centre (12), a plurality of local terminals (11) distributed throughout the land for materially issuing the official stamps and/or titles (25), and a plurality of smart cards (21) assigned to the operators of the local terminals (11), in which an initialisation programme (40) is provided for initialising, in combination, a given local terminal (11) and a given smart card (21) of the system (10), in order to establish between that given terminal (11) and that given smart card (21) a bi-unequivocal type relationship of correspondence and cooperation, so that the given local terminal (11) and the given smart card (21), once initialised, are enabled within the system (10) to cooperate uniquely between one another to the exclusion of all other terminals and all other smart cards.

Abstract: The correction device is applied to an electronic typewriter with a daisywheel and comprising an electric selector motor which selectively rotates the character-carrying daisywheel in the clockwise and the anti-clockwise directions for selecting the characters to be typed and/or corrected, a carrier for a correcting ribbon and a control member for lifting the carrier and permitting correction of the typed characters. A small correcting solenoid can be activated to couple the control member of the correcting ribbon to the selector motor. The control unit controls the motor and the solenoid in such a way that the selector motor can also actuate the control member in each correction cycle for positioning the correcting ribbon in front of the typing point. In the illustrated form, the solenoid unlatches a lever which drops to bring the control member into mesh with a gear on the motor shaft. The control gear is eccentrically mounted on the lever and a first 180.degree. revolution, corresponding to 360.degree.

Abstract: The electronic typewriter comprises a character-carrier disc with flexible blades, which is mounted on a carriage which is movable transversely with respect to the typing roller by means of a stepping motor. Mounted on the carriage is a motor for selecting the character, a striker hammer, a positioning device and an actuating motor which actuates the hammer and the positioning device and which also provides for activating the operations by means of a typing ribbon and by means of a correction ribbon. The selection motor is supplied by a servo control of digital type which imparts to the motor a speed which is proportional to the positional error, positioning the blade of the character to be typed with a maximum error of .+-.1/4 of a pitch. The positioning device then provides for correction of the character, engaging a recess of a positioning disc which is synchronous with the character-carrier disc.