Nickel-cadmium batteries
The inventor is the Swedish scientist Waldemar Jungner, who patented the nickel-cadmium type technology in 1899. In 1990 a patent dispute arose with Edison, which...
The inventor is the Swedish scientist Waldemar Jungner, who patented the nickel-cadmium type technology in 1899. In 1990 a patent dispute arose with Edison, which...