Method for conferring maximum security on a fiduciary paper, fiduciary paper modified by this method and opto-electric device for the identification of said fiduciary paper.
CA2088559A1
Seat for standing worker
FR2645386A1
Improved sound reproduction assembly
FR2590311A1
Device for protection against attack
FR2561018A1
Improvement on display panels
ATA901281A
Protective device against racks
FR2476731A1
Protective screen for bank or post office positions - has light flexible screen folding around spring-loaded bars saving space and deploying rapidly
