| Patents for E05B 21 - Locks with rotary keys moving lamelliform tumblers perpendicular to the key, in which the tumblers do not follow the movement of the bolt (664) |
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| 08/21/1991 | CN2083173U Mechanical dual-latch protector lock with cipher |
| 08/14/1991 | CN2082743U Theft-proof safety lock for steel door |
| 08/07/1991 | CN2082291U Spring lock |
| 07/03/1991 | CN2080084U Anti-theft spring door lock |
| 07/03/1991 | CN2080083U Anti-theft door lock |
| 05/29/1991 | EP0429226A2 Lever locks |
| 05/29/1991 | CN2077890U Locks with four protectors function |
| 05/29/1991 | CN2077889U Safety cylinder locks for double-leaf door |
| 05/22/1991 | CN2077471U Anti-theft cylinder lock |
| 05/15/1991 | CN2077010U Anti-prizing lock |
| 05/07/1991 | CA1283792C Key lock with key isolation |
| 05/01/1991 | CN2076144U Connecting rod clutch type dual-safety lock |
| 04/24/1991 | CN2075682U Anti-theft door lock |
| 04/17/1991 | CN2075236U Core changeable lock for door |
| 04/17/1991 | CN2075235U Door lock with spring square bolt capable of internal and external protecting |
| 04/10/1991 | CN2074787U Pick-proof universal-key proof spring lock |
| 04/03/1991 | CN2074338U 防盗锁 Anti-theft lock |
| 04/03/1991 | CN2074337U Anti-picking billiard door latch with fixed bevel |
| 03/13/1991 | CN2073010U Protected built-in lock |
| 02/20/1991 | CN2071681U Antipicking lock |
| 02/06/1991 | CN2070793U Convenient door protector lock with dual bolt |
| 01/31/1991 | DE3924971A1 Cylinder lock for motor vehicle door - can be opened by rotating key in either direction |
| 01/29/1991 | CA1279497C Lock with key isolation using transfer tumblers |
| 01/16/1991 | CN2069456U Poke-proof and stir-proof lock |
| 01/09/1991 | CN2068992U 安全保险锁 Safety safety lock |
| 01/09/1991 | CN2068991U Lock using both balls and ciphers |
| 01/02/1991 | CN2068546U Anti-theft built-in lock |
| 12/26/1990 | CN2068125U Anti-prizing safety lock |
| 12/26/1990 | CN2068124U Anti-drilling spring lock |
| 12/26/1990 | CN2068123U Plate armour anti-stealing lock |
| 11/14/1990 | CN2065651U Prizing-proof safety lock |
| 11/14/1990 | CN2065650U Safety device for mechanical puzzle door lock |
| 11/07/1990 | CN2065220U All-functional anti-theft protector for door lock |
| 11/07/1990 | CN1046774A Convenient safe lock |
| 10/31/1990 | CN2064803U Double safety door lock |
| 10/17/1990 | CN2063964U Anti-theft spring lock |
| 10/09/1990 | US4961333 Key lock with transfer tumblers and master keying |
| 09/12/1990 | CN2061952U Multi-function theft-proof alarm spring door lock |
| 08/08/1990 | CN2060174U Anti-stealing machinery lock |
| 08/01/1990 | CN2059932U Anti-prizing cylinder lock on door |
| 07/04/1990 | CN2058928U 磁性保险锁 Magnetic safety lock |
| 06/27/1990 | CN1043360A Method for preventing spring lock from being prizing |
| 05/09/1990 | CN2056929U Spring lock with single square bolt |
| 04/11/1990 | CN2055839U Lock with double safety guard |
| 04/11/1990 | CN2055838U Anti-prizing built-in lock |
| 04/11/1990 | CN1041201A Coded ball lock |
| 04/04/1990 | CN2055519U Safety lock with anti-prize and anti-poke function |
| 04/04/1990 | CN2055518U Anti-theft spring lock |
| 04/04/1990 | CN2055517U Safety anti-theft lock |
| 03/28/1990 | CN2055158U Multi-function lock |
| 03/28/1990 | CN2055157U Special theft deterrent iron door lock |
| 03/07/1990 | CN2054059U Safety door lock |
| 02/28/1990 | CN2053644U Seizing-piece type safety lock |
| 02/28/1990 | CN2053643U Safety cylinder lock |
| 02/14/1990 | CN2052804U Spring lock for anti-accident locking |
| 02/14/1990 | CN2052801U Multi-functional separate anti-theft duor lock |
| 02/07/1990 | CN2052421U Anti-picking lock |
| 01/24/1990 | CN2051653U Guard lock against prying with three-class control |
| 01/23/1990 | US4895036 Key |
| 01/03/1990 | CN2050453U Safety built-in lock |
| 12/20/1989 | CN2049656U Bumping-preventing door lock |
| 12/13/1989 | CN2049246U Built-in lock of burglar alarm door |
| 12/13/1989 | CN2049245U Automatic safety cylinder door lock |
| 12/13/1989 | CN2049244U Convenient safety lock |
| 11/22/1989 | CN2048097U Multi-purpose double-protecting lock |
| 11/22/1989 | CN2048096U Multi-function protector lock |
| 11/16/1989 | WO1989011014A1 Locking disc cylinder lock |
| 11/15/1989 | CN2047692U Anti-theft door lock |
| 11/02/1989 | DE3813658A1 Lock cylinder with disc tumblers |
| 10/25/1989 | CN2046524U Safety cylinder lock with presto combination function |
| 09/27/1989 | CN2045010U Super safety cylinder lock |
| 07/05/1989 | CN2040522U Cipher device for lock |
| 07/05/1989 | CN2040521U Multifunctioanl safty door lock for both in door and out door |
| 06/28/1989 | CN2040131U Safety automatic spring lock |
| 06/13/1989 | US4838055 Anti-thief key lock for vending machines |
| 06/06/1989 | US4836000 Lever tumbler lock |
| 05/31/1989 | CN2038527U Consolidated anti-theft door lock |
| 05/09/1989 | CA1253714A1 Cylinder lock |
| 04/12/1989 | CN2035783U Anti-thief door lock with warner |
| 04/12/1989 | CN2035782U Spring and digit combined lock |
| 04/05/1989 | CN2035370U Prizing-protective spring door lock |
| 04/05/1989 | CN2035369U 双重防盗门锁 Double anti-theft locks |
| 03/21/1989 | CA1251341A1 Tumbler lock having peripheral key |
| 02/22/1989 | CN2033038U Multi-functional safe door lock |
| 02/08/1989 | CN2032215U Universal key prevented spring lock |
| 01/11/1989 | EP0298600A1 Lock with key isolation using transfer tumblers |
| 01/11/1989 | CN2030638U Door lock guarding against prizing |
| 01/10/1989 | US4796447 Lock with key isolation using transfer tumblers |
| 12/28/1988 | EP0297063A1 A lever tumbler lock |
| 12/14/1988 | CN87213825U Core type door lock |
| 11/02/1988 | CN88203067U Skeleton keys proof cylinder locks |
| 05/11/1988 | CN87213527U One-side opening automatic safety door lock |
| 05/10/1988 | US4742703 Cylinder lock and key with rotating elements |
| 04/26/1988 | US4739639 Auto-directing lever lock |
| 10/13/1987 | CA1227941A1 Locks |
| 09/29/1987 | CA1227351A1 Cylinder lock and key |
| 09/08/1987 | US4691545 Safety lock with plural tumblers, having a shaped consent stud |
| 08/18/1987 | US4686843 Cylinderlock-key-combination |
| 07/01/1987 | EP0227236A2 Lock in which the key is moved away and isolated from the tumblers |
| 05/26/1987 | US4667493 Disc type cylinder lock |