Elevator Hall Call Board
Copyright © Targeted News Service 2024
2024-11-19
ALEXANDRIA, Virginia, Nov. 19 -- OTIS ELEVATOR COMPANY, Farmington, Connecticut has been assigned a design patent (No. US D1052109 S1, initially filed Sept. 9, 2021) developed by Zhe Li, Hangzhou, China, and Sisi Zheng, Hangzhou, China, for "Elevator hall call board." . . .