PORTABLE DEVICE FOR PHOTOGRAPHING THE PAGES OF A BOOK
FR2833087A1
Portable book photographing system for blind people fits book over hinged angle
FR2830967A1
TOUCH-READING MODULE ACTUATED BY A SHAPE MEMORY WIRE
FR2718266A1
Tactile reading range activated by shape memory wires.
FR2565010A1
Touch reading device
FR2463466A1
Piezoelectric transducer producing linear motion of rod - for electrical braille display panels, opt. involves PTFE coated plastic mouldings
FR2451664A1
PROCESS FOR STABILIZING DEFORMATIONS OF PIEZOELECTRIC ELEMENTS, PIEZOELECTRIC ELEMENTS TREATED BY THIS PROCESS, AND APPLICATION OF SUCH ELEMENTS TO TRANSDUCERS
JPS5472128A
Electromechanical converter for embossment display and method of using said converter
US4305067A
Electromechanical transducer for relief display panel
CA1075459A
Electromechanical transducer for relief display panel
US4044350A
Electromechanical transducer for relief display panel
