Improvements in or relating to disc tumblers for cylinder-locks and a lock provided with a plurality of such disc tumblers

摘要

1,084,813. Locks. WARTSILA-YHTYMA OY-WARTSILA-KONCERNEN A.B. Sept. 8, 1964 [July 9, 1964], No. 36710/64. Heading E2A. A disc tumbler 1 for a cylinder lock is formed at one or both sides near its periphery with a depression 3 to prevent picking.