| http://www.w3.org/ns/prov#value | - The sleeve is a retainer for interchangeable screwdriver...http://www.google.com/patents/US5711194?utm_source=gb-gplus-sharePatent US5711194 - Folding knife and interchangeable bit screwdriverAdvanced Patent SearchPublication numberUS5711194 APublication typeGrantApplication numberUS 08/451,398Publication dateJan 27, 1998Filing dateMay 26, 1995Priority dateMay 26, 1995Fee statusLapsedAlso publishe
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