Inventor

BOGNER ROBERT E

3 patents

Patents

3 patents

US4276539AJun 30, 1981

Vehicle detection systems

PHILIPS CORP33 citations88

US4234923ANov 18, 1980

Vehicle detection systems

PHILIPS CORP7 citations69

US4379280AApr 5, 1983

Vehicle detection systems

PHILIPS CORP4 citations58