Patents
Sitemap › E05 - Locks; Keys; Window or door fittings; Safes › E05B - Locks; Accessories therefor; Handcuffs › E05B 49 - Electric permutation locks; Circuits therefor
Patents for E05B 49 - Electric permutation locks; Circuits therefor (8,951)
05/1981
05/19/1981CA1101513A1 Security system
04/1981
04/21/1981US4262504 Locking device
03/1981
03/24/1981US4258352 Control device for vehicle locks
03/17/1981US4256956 Code identification apparatus
03/05/1981WO1981000586A1 Lock operated by magnetic means
02/1981
02/10/1981CA1095606A1 Dual frequency narrow-band frequency modulated keyable control circuit and keying circuit therefor
01/1981
01/20/1981CA1094196A1 Electronic identification device
01/07/1981EP0021499A1 Electrical key-like device in combination with an electrical receptacle
12/1980
12/30/1980US4242576 Electronic identification device
12/11/1980WO1980002711A1 Electronic lock with changeable opening code
12/10/1980EP0020247A1 Device for the authorized opening of a door by means of a coded card
11/1980
11/04/1980US4232353 Door lock security system
11/04/1980US4232291 Electronic lock, the code of which can easily be modified by the user
10/1980
10/21/1980US4229818 Method and apparatus for enciphering blocks which succeed short blocks in a key-controlled block-cipher cryptographic system
10/01/1980EP0016113A1 Door lock security system
07/1980
07/15/1980US4213118 Combination changing system and method
07/09/1980EP0013253A1 Cylinder lock with key for mechanical and/or electromechanical latching
07/09/1980EP0012974A1 Method for enciphering data blocks of a given length
06/1980
06/26/1980WO1980001299A1 Barrel lock for mechanical and/or electromechanical locking
05/1980
05/27/1980US4205325 Keyless entry system
02/1980
02/19/1980US4189712 Switch and lock activating system and method
02/12/1980CA1071769A1 Electronic combination lock and system
01/1980
01/24/1980WO1980000091A1 Door lock security system
12/1979
12/11/1979US4177657 Electronic lock system
08/1979
08/08/1979EP0003238A1 Mobile cargo container with electro-mechanical lock
07/1979
07/24/1979US4161870 Mobile cargo-container lock
07/11/1979EP0002948A1 Keyless locking and entry system
06/1979
06/26/1979CA1057377A1 Lock opening system activated by light matching code
03/1979
03/13/1979US4144523 Digital key system
03/06/1979US4142387 Identification device
03/06/1979CA1050134A1 Programmable card actuated lock
11/1978
11/28/1978USRE29846 Electronic combination lock and system
11/28/1978CA1043460A1 Magnetic identification apparatus
11/28/1978CA1043443A1 Inductively coupled lock
09/1978
09/26/1978CA1039381A1 Access control assembly
08/1978
08/15/1978US4107655 Mechanical code for operated device for access to coded electrical circuits
08/01/1978US4104490 Coding lock
05/1978
05/16/1978US4090175 Opto-electronic lock device
03/1978
03/21/1978US4079605 Optical key reader for door locks
11/1977
11/29/1977US4060846 High security lock
09/1977
09/20/1977US4050063 Key actuated electronic lock for auto ignitions
08/1977
08/02/1977US4038846 Electronic combination lock
06/1977
06/07/1977USRE29259 Self re-keying security device
04/1977
04/26/1977US4019355 Pushbutton combination lock
10/1976
10/05/1976US3984658 Programmable card actuated lock
09/1976
09/07/1976US3979647 Inductively coupled lock
05/1976
05/25/1976US3959613 Electric lock
04/1976
04/27/1976US3953712 Magnetic identification apparatus
03/1976
03/30/1976US3947641 Use of public subscriber telephone network; method and apparatus
03/02/1976US3941955 Electric lock and key assembly
02/1976
02/24/1976US3940738 Electric lock
1 ... 80 81 82 83 84 85 86 87 88 89 90