1970s

U.S. Patent 3,906,166, Radio Telephone System – September 1975

On September 16, 1975, Marty along with  Richard W. Dronsuth, Albert J. Leitich, Charles N. Lynk, Jr., James J. Milkulski, Roy A. Richardson, John H. Sangster was awarded United States Patent number 3,906,166.  Titled “Radio Telephone Systems,” this patent describes how cellular networks operate all the way down to radio configurations, cell shapes and sizes, and operating …

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“New Dimensions in Communications,” Motorola Communications Brochure including DynaTAC – 1973

Motorola’s Communication Division released the attached brochure that describes the radio communications systems they offered in 900 mHz radio spectrum. Product lines included in the piece include various types of dispatch systems, mobile (car) telephones and the DYNATac 8000 “portable radiotelephone system.”

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