Electric toothbrush braces). The Broxo Electric Toothbrush was introduced in the U.S. by E. R. Squibb and Sons Pharmaceuticals in 1960. After introduction, it was marketed in the U.S. by Squibb under the names Broxo-Dent or Broxodent. In the 1980s Squibb transferred distribution of the Broxodent line to the Somerset Labs division of Bristol-Myers Squibb. The General Electric automatic toothbrush was introduced in the early 1960s; it was cordless with rechargeable NiCad batteries and although portable, was rather bulky, about the size of a two-D-cell flashlight handle. NiCad batteries of this period suffered from the Memory effect. The GE Automatic Toothbrush came
Electro-Dynamic Company Electro-Dynamic Company The Electro-Dynamic Company manufactured electric motors and generators 1880-2000, principally as a subsidiary of the Electric Boat Division of General Dynamics and its predecessors. The company was founded by electrical inventor William Woodnut Griscom in 1880. An important early customer for electric boat motors was the Electric Launch Company, also known as Elco. Following an 1892 bankruptcy, financier Isaac Rice bailed out Electro-Dynamic and became a co-owner. Griscom died in a hunting accident in 1897. Electro-Dynamic manufactured the main propulsion motor for , the United States Navy's first modern submarine, launched in 1897. In 1899, Rice founded Electric