The rotary type locking device which is strong in the irregularities for the receipt section

摘要

(57) Abstract As it is unlocked the key which is formed simply (55) by, it protects from irregularities with access and the unique geometric form which are restricted, being simple, low cost the locking device (20) is. Access is restricted the key hole which has unique star (36) the cam twistor which it possesses (30) the spin bush which protects access (50) by.