| 1942 : Pressure reducer for liquefied gas (road and rail vehicles). |
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| 1947 : Mr Gratzmuller and Mr Berger develop the hydraulic starter (used for example in AMX tanks and generator engines). |
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| 1952 :1st hydraulic drive for circuit breaker with mechanical locking: Jeumont launcher |
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| 1954 : 723 command block, 1st block with mechanical stop and opening valve |
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| 1957 : 919 command block, designed for circuit breaker with spring return |
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| 1964 : Drive with hydraulic locking (self holding) |
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| 1966 : Development of the 1st Make switch |
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| 1973 : 5000 command block for circuit breaker with spring return and hydraulic return |
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| 1984 :6000 command block, very compact |
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| 1990 : New family of THT hydraulic drives for working temperatures -55°c |
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1994 : Development of UHT hydraulic drives for circuit breakers intended for a wide voltage ranging from 300 to 800 KV
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| 1996 : Valve for battery (electric car, aeronautics) |
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| 1997 : -3,000 meters valve,ocean beds (offshore) |
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| 1998 : New Make switch generation |
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| 2002 :Safety valves and piston accumulator types of ETNA Industrie conform with the requirement of the Pressure Equipment Directive (PED) 97/23/ CE |
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| 2004 : Development of the ‘’PLUG and PLAY’’ hydraulic drive. |
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