| http://www.w3.org/ns/prov#value | - FIG. 3B is a side view of the entire positioning system 60, which preferably comprises three of the PSP joint configurations shown in FIG. 3A. The three PSP joint configurations 50, 55 and 56 preferably are joined in a three-PSP actuator assembly to complete the P, R, Z positioning system 60.
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