Domenico Mastini v. American Telephone and Telegraph Company and Western Electric Company, Domenico Mastini v. New York Telephone Company

MEDINA, Circuit Judge:

Appellant Mastini was granted patent No. 2,129,332, on September 6, 1938, covering a particular type of mobile radio-telephone system, which he now claims has been infringed by the radiotelephone system developed by the ap-pellee American Telephone and Tele graph Company and now in common use. The operation of the appellee’s system has been stipulated: the remote, or mobile, radio transmitter emits a radio signal which is received by a stationary terminal and forwarded to a special operator at a toll switchboard. When a light flashes on this switchboard, the operator…