Inventor

SHULL JR JULIAN H

US3 patents

Patents

3 patents

US6701277B2Mar 2, 2004

Elevator car position sensing system

OTIS ELEVATOR CO16 citations87

US6526368B1Feb 25, 2003

Elevator car position sensing system

OTIS ELEVATOR CO26 citations87

US5771277AJun 23, 1998

Elevator car modem with transhybrid rejection

OTIS ELEVATOR CO3 citations59