Before revision: B) soon after, in 1922 - 1923 , the synchro-ciné is now becoming a complete synchronization system, in which the reading desk is only one of the many elements around of another central device, the control band, which can automatically trigger various 'noise' devices (Ciné-bruiteurs) or 'noise-makers' (also designed and incorporated into the system in the patent), shoot piano players, gramophones, and various desks that are needed, up to a maximum of, it seems, 9 devices.
After revision: B) Soon after, in 1922-23 , the synchro-ciné is now becoming a complete synchronization system, in which the reading desk is only one of the many elements around of another central device, the control band, which can automatically trigger various 'noise' devices (Ciné-bruiteurs) or 'noise-makers' (also designed and incorporated into the system in the patent), shoot piano players, gramophones, and various desks that are needed, up to a maximum of, it seems, 9 devices.