Assignee
GRATZMUELLER C A
FR·7 granted patents·74 citations·filing 1976–1989
Top patents by PatentIndex Score
7 records- 0163US4078121ASafety-valve stopper especially intended for electric storage batteriesGRATZMUELLER C A·Filed 1976·Granted Mar 7, 1978·18 cites·5 claims
- 0259US4204461AHydraulic control system for electric circuit-breakersGRATZMUELLER C A·Filed 1979·Granted May 27, 1980·11 cites·12 claims
- 0356US4794950AThree-way hydraulic valveGRATZMUELLER C A·Filed 1988·Granted Jan 3, 1989·12 cites·6 claims
- 0451US4807514ADifferential hydraulic jack with damping system for the control of electric circuit-breakersGRATZMUELLER C A·Filed 1988·Granted Feb 28, 1989·12 cites·10 claims
- 0545US4243855AHydraulic system for simultaneous control, especially for the control of electric circuit breakersGRATZMUELLER C A·Filed 1978·Granted Jan 6, 1981·8 cites·13 claims
- 0644US5031504AHydraulic jack with a system for checking the position of the pistonGRATZMUELLER C A·Filed 1989·Granted Jul 16, 1991·9 cites·7 claims
- 0735US4669265AOleopneumatic control system for electric circuit-breakersGRATZMUELLER C A·Filed 1984·Granted Jun 2, 1987·4 cites·14 claims
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