| http://www.w3.org/ns/prov#value | - a fragmentary elevational view, partly in section, of the arms of the slave unit; Fig. 6A is a sectional view taken on the line 6A--6A of Fig. 6; Fig. 7 is a sectional view taken on the line 77 of Fig. United States Patent 0 described later. 6 and showing the mounting of the cable pulleys at the pivot between the arms of the slave unit; Fig. 8 is a fragmentary sectional view taken on the line 8-8
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