 Plymouth, Massachusetts--Newsfile Corp. - February 3, 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 the latest addition to its PRT X1 and XV UAV Unmanned Aerial Vehicle payload systems.MediMod is an active insulated refrigerated storage module that will have multiple medical uses and advantages, including assisting with the immediate... 