Edison was issued two patents this day in 1912 – This Day in Patent History

On August 20, 1912, Edison received U.S. patent No. 1036470 for a “Phonographic Apparatus,” and patent No. 1036471 for a “Storage Battery”

Phonograph is a device for the mechanical recording and reproduction of sound. In its later forms it is was called a gramophone.

Here is a boy with his toy record player in 1920s.

Edison established Edison Storage Battery Company in New Jersey in 1901, to develop, manufacture, and sell Thomas Edison’s alkaline storage battery. Edison spent a lot of time and effort in developing a storage battery that he intended for use in electric automobiles. It took him a decade to develop a commercially viable iron-nickel battery. The battery found an extensive market for his battery in a variety of industrial uses. It became the most successful product of his later life.

The battery company was sold to the Exide Battery Corporation in 1972.

Source: Rutgers

US1036470

US1036471