| 1877 : Foundation of Klein company |
 |
| 1910 : Acquisition of Lecoq corporation founded in 1828 |
|
| 1920 : Manufacturing of the first validators and ticket punchers |
|
| 1957 : Creation of the first four-armed turnstile tested in Paris metro (Nation station) |
|
| 1967 : Installation of the first reader-equipped three-armed turnstiles in Mexico and Paris metros. |
|
| 1974 : Installation of the first hidden gate |
|
| 1977 : First Display panels in cooperation with France Rail Publicité and JCDecaux |
|
| 1994 : First Slimline gate with 200 mm wide cabinet |
