Claude A. Gratzmuller

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75116 Paris, FR

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Patents Grantslast 30 patents

Information Patent Grant
Hydraulic jack with a system for checking the position of the piston
- Patent number 5,031,504
- Issue date Jul 16, 1991
- Claude A. Gratzmuller
- F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
Information Patent Grant
Three-way hydraulic valve
- Patent number 4,794,950
- Issue date Jan 3, 1989
- Claude A. Gratzmuller
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Oleopneumatic control system for electric circuit-breakers
- Patent number 4,669,265
- Issue date Jun 2, 1987
- Claude A. Gratzmuller
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Hydraulic system for simultaneous control, especially for the contr...
- Patent number 4,243,855
- Issue date Jan 6, 1981
- Claude A. Gratzmuller
- F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
Information Patent Grant
Hydraulic control system for electric circuit-breakers
- Patent number 4,204,461
- Issue date May 27, 1980
- Claude A. Gratzmuller
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Safety-valve stopper especially intended for electric storage batte...
- Patent number 4,078,121
- Issue date Mar 7, 1978
- Claude Alain Gratzmuller
- H01 - BASIC ELECTRIC ELEMENTS