Matsusaburo Yamaguchi of Yamaguchi Electric Company, Japan, invented the back-up beeper which was first manufactured as model BA1 in 1963.
It was first manufactured as model BA1 in 1963. Matsusaburo Yamaguchi of Yamaguchi Electric Company, Japan, invented the back-up beeper.
Matsusaburo Yamaguchi of Yamaguchi Electric Company, Japan, invented the back-up beeper. It was first manufactured as model BA1 in 1963.
Matsusaburo Yamaguchi of Yamaguchi Electric Company, Japan, invented the back-up beeper. It was first manufactured as model BA1 in 1963.