| http://www.w3.org/ns/prov#value | - eaded area into which a shaft point of said transmission shaft is introduced, an essentially rectangular-shaped cavity whose shorter sides are curved, wherein two pins project from the straight-cut part of said threaded cylindrical area; a sliding skate on which said upper body with said cutting means is mounted, said sliding skate including a sliding skate threaded area, with a straight cut that
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