| http://www.w3.org/ns/prov#value | - Means indicated generally at 87 for swinging the back section 9 between these limits and maintaining it in either of these limit positions or at any position therebetween, including the position in which it is shown in solid lines in FIG. 1 coplanar with the seat section, is shown to comprise a pair of hydraulic cylinders referred to as the back section cylinders, designated 89, at opposite sides
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