A. B. Dick Co. v. Simplicator Corp.

WINSLOW, District Judge.

This is an equity action to restrain the alleged infringement of patent No. 1,526,982 for a stencil sheet, granted to plaintiff February 17, 1925, on application filed April 7, 1922, by Edward W. Hill.

A stencil sheet is a sheet adapted to be converted into a stencil for multiplying copies in duplicating machines such as those sold by the plaintiff under the name “Mimeograph.”

The plaintiff manufactures machines for producing prints by stencil process, and supplies for the machines. The machines are *714sold practically at cost — its profits are mainly derived from supplies.…