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Servo-assisted steering system
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Patent number 5,950,759
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Issue date Sep 14, 1999
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ZF Friedrichshafen
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Armin Lang
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B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
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Hydraulic steering arrangement
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Patent number 5,860,351
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Issue date Jan 19, 1999
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ZF Friedrichshafen AG
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Armin Lang
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B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
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Auxiliary power steering
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Patent number 5,509,494
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Issue date Apr 23, 1996
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ZF Friedrichshafen AG
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Armin Lang
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B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
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Servosteering pressure control device
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Patent number 4,784,041
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Issue date Nov 15, 1988
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Zahnradfabrik Friedrichshafen, AG
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Armin Lang
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B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
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Hydraulic steering
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Patent number 4,555,975
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Issue date Dec 3, 1985
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Zahnradfabrik Friedrichshafen, AG
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Armin Lang
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B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
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Servo steering
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Patent number 4,462,478
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Issue date Jul 31, 1984
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Zahnradfabrik Friedrichshafen, AG
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Armin Lang
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B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
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Vehicle power steering apparatus
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Patent number 4,456,087
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Issue date Jun 26, 1984
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Zahnradfabrik Friedrichshafen, AG
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Armin Lang
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B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
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Electro hydraulic servo valve
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Patent number 4,390,158
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Issue date Jun 28, 1983
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Zahnradfabrik Friedrichshafen, AG
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Armin Lang
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...