 Plymouth, Massachusetts--Newsfile Corp. - April 13, 2021 - Plymouth Rock Technologies Inc. CSE: PRT OTCQB: PLRTF FSE: 4XA WKN: A2N8RH Plymouth Rock, PRT, or the Company, a leader in developing threat detection and unmanned technologies, is pleased to announce that Dr. Gianluca De Novi has been appointed to the role of VP of Engineering.Dr. De Novi is currently a Harvard Faculty member, Director of the Medical Device and Simulation Laboratory at the Imaging Department... 