| http://www.w3.org/ns/prov#value | - Apparatus for evidencing the position of a movable member both when at rest and when in motion, including a series of magnetically biased and alternatingcurrent excited magnetic detectors, and a combinational code member having magnetically different portions opposite the detectors so as to present unique code patterns 18 varying from point to point along the member in a div. rection across the se
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