| Patents for B66B 27 - Indicating operating conditions of escalators or moving walkways (306) | |
|---|---|
| 09/1989 | |
| 09/05/1989 | US4863006 Automatic shutoff apparatus for an escalator |
| 03/1989 | |
| 03/22/1989 | EP0307557A1 Switch-off device for an escalator |
| 03/15/1989 | CN1031686A Circuit breaker of escalators |
| 08/1988 | |
| 08/31/1988 | CN87212527U Concentrated control device displaying building floor by numerical codes |
| 05/1988 | |
| 05/31/1988 | US4748394 Control apparatus for escalator |
| 12/1986 | |
| 12/17/1986 | CN86103291A Control device for elevator |