NASHUA, N.H. — A research company is seeking funding to build a prototype autonomous, battery-powered flatcar that would serve as a platform for package-delivery drones. Cambridge Research & Development has applied for a patent for the con…
NASHUA, N.H. — A research company is seeking funding to build a prototype autonomous, battery-powered flatcar that would serve as a platform for package-delivery drones. Cambridge Research & Development has applied for a patent for the con…