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Home › Vertically operating ball screw and nut actuator system for synchronously moving multiple elements in load balanced opposed directions, and methods of constructing and operating ball screw actuator systems

Vertically operating ball screw and nut actuator system for synchronously moving multiple elements in load balanced opposed directions, and methods of constructing and operating ball screw actuator systems

US Patent 6082207 · Granted Jul 4, 2000

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