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This material consists of correspondence, court records, and other documents relating to patent interference proceedings and infringement suits and to other litigation regarding Edison primary and storage batteries. Most of the items pertain to the protection of Edison's patents against those of competitors. Included are selections from two case files: one involving a Patent Office hearing on storage battery patents, and the other dealing with infringement suits over primary battery patents.
Less than 10 percent of the documents have been selected. The selected items reflect Edison's personal involvement in legal matters, detail experimental work by Edison or his assistants, or broadly pertain to stratagems employed against competitors. The documents are arranged in the following order: