| 摘要 |
PROBLEM TO BE SOLVED: To provide a lock case reinforcing body for crime prevention, and a lock case for preventing a cylinder lock projected from a door surface, from being wrenched off, as a part of countermeasures to a brutal thief. SOLUTION: This lock case reinforcing body for crime prevention formed in case shape by quenching carbon steel, has a thumb-turn mounting fitting hole in one sidewall and a cylinder mounting fitting hole in the other sidewall. COPYRIGHT: (C)2005,JPO&NCIPI
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