TY  - GEN
TI  - Elevator Cars, Elevator Entrances: catalogue no. 56 - Hatch Side of A Two-Speed Installation Showing Side Arm Pneumatic Door Operator
AU  - W.S. Tyler Company
DA  - 1927
UR  - https://digital.lib.uh.edu/collection/aapamphlets/item/1147/show/1052
Y2  - March 3, 2021
ER  -