Invention Grant
US09255661B2 Adjusters to control lower joints and upper joints 有权
调节器可控制下关节和上关节

Adjusters to control lower joints and upper joints
Abstract:
An adjuster is to control operation of a lower joint and an upper joint. The lower joint couples a base to an arm, and the upper joint couples the arm to a mount. The adjuster controls the joints according to a first mode and a second mode. The first mode is to secure the lower and upper joints against adjustability. The second mode is to release the lower and upper joints for adjustability.
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