The one selected item in this folder is a letter from 1905 by Frank L. Dyer of the Legal Department. It concerns an exhibiting machine designed by Edwin S. Porter and its possible infringement of a patent issued to Thomas Armat in 1901.

The unselected material includes correspondence with patent attorneys Bacon & Milans of Washington, D.C., regarding a patent for a kinetographic camera issued in 1899 to Oscar B. Depue of Chicago.