Lock (1) comprising a mechanism (25) for locking and unlocking, by means of an electromagnet (34), a member (9) connecting or designed to connect a handle or other actuating means on the one hand and at least one latch (10) on the other hand, the said mechanism comprinsing an auxiliary element (26) designed...http://www.google.com.au/patents/US4986580?utm_source=gb-gplus-sharePatent US4986580 - Lock with a mechanism for locking and unlocking by means of an electromagnet
