Improvements in or relating to gramophones having a magazine for discs
GB628642A
Improvements in or relating to talking machines
GB597777A
Improvements in or relating to devices for selecting discs for talking machines withautomatic changing of discs
GB598907A
Improvements in or relating to devices for driving a film in a cinematographic apparatus
GB569809A
Improvements in or relating to devices for controlling the movements of the platen and of the carriage of a typewriter or analogous machine
US2388936A
Line spacing device for typewriters
GB544545A
Improvements in and relating to devices for automatically controlling the movements of a pick-up arm in talking machines provided with means for changing discs automatically
GB544546A
Improvements in and relating to devices for automatically controlling the movements of a pick-up arm in talking machines provided with means for changing discs automatically
