| http://www.w3.org/ns/prov#value | - Other advantages and. features will be apparent from the following detailed description taken in conjunction with the attached drawings in which: Fig. 1 is a side elevational view of the clutch assembly locked in its engaged position with a partial section. showing the relation between the locking pins and the two sets of grooves; Fig. 2 is a view of the invention, sectional except for the shaft,
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