4Front Robotics, Forefront Robotics, Unmanned Aerial Vehicles, Uav, Unmanned Ground Vehicles, Ugv, Robot, 3D Navigation and Control, Unmanned Vehicle, Confined Spaces, Pipeline Leak Detection, Monitoring, Search and Rescue, Policing, Calgary, Canada; 4Front Robotics provides unmanned vehicle systems and their corresponding control and navigation mechanisms for complex missions in confined spaces, Robotics Parts ...