| Patents for F16D 121 - Type of actuator operation force (1,605) | |
|---|---|
| 04/2003 | |
| 04/17/2003 | WO2003031309A1 Brake controller of elevator |
| 08/2001 | |
| 08/29/2001 | CN1070126C Braking method for bicycle with power |
| 04/2001 | |
| 04/04/2001 | CN1289702A Brake controlling device for bicycle with powered drive |
| 06/2000 | |
| 06/14/2000 | EP1008228A1 Electromagnetic operable mechanical brake for an electric motor |
| 10/1997 | |
| 10/22/1997 | CN1162548A Braking method for bicycle with powered drive and controlling device therefor |