MAGNETIZED OBJECT WITH MAGNETIZED DOMAIN WHICH IS LIMITED TO OBJECT COMPRISING MAGNETIC BODY AND METHOD OF FORMING THEREOF

摘要

The invention pertains to magnetically operated locks, and particularly pertains to a magnetic lock using a code device having a low magnetic permeability wherein a small localized portion of the code device surface is magnetized to produce dipoles located at a common surface, the localized magnetized region functioning to position magnetic elements of a lock.