Title:
HARDLY DUPLICABLE KEY
Document Type and Number:
Japanese Patent JP2003239587
Kind Code:
A
Abstract:
To form a hardly duplicable key for improving security.
In this hardly duplicable key, ferromagnetic bodies are arranged at random in an irregular form in a non-magnetic body, while a determination function for determining agreement of the key according to the form of the ferromagnetic bodies is provided on a key hole side.
Inventors:
SUZUKI TOSHIKI
Application Number:
JP2002073239A
Publication Date:
August 27, 2003
Filing Date:
February 12, 2002
Export Citation:
Assignee:
SUZUKI TOSHIKI
International Classes:
E05B49/00; E05B19/00; (IPC1-7): E05B49/00; E05B19/00
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