This folder contains correspondence relating to legal matters associated with the development and sale of batteries. The selected documents cover the period 1903-1906 and relate to storage batteries. Among the correspondents are Edison; Frank L. Dyer of the Legal Department; and Dr. L. Sell, a German chemist. Most of the items concern patents sought, granted, or contested in Germany and Sweden and discuss competition between Edison and Waldemar Jungner of Sweden. Also included is a 17-page letter from Frank L. Dyer to the patent firm of Meffert & Sell discussing the technical problems that led to the suspension of commercial manufacture of Edison's storage battery in 1904.
Less than 10 percent of the documents have been selected. Among the items not selected are letters pertaining to storage battery patents in Great Britain and to a collection dispute involving Edison primary batteries.