| http://www.w3.org/ns/prov#value | - FIG. 3 is a partially schematic cross-sectional illustration of a positioning system 300 that includes a drive mechanism 310 coupled to an anchor portion 331 of an actuation device 330 via a coupling element 397 (e.g., a torque tube), a gearing arrangement 380 that can be at least partially contained in a housing 386, and an eccentric cam 320.
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