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| Number | Title | Issue Date |
| 6464269 | Security seal and removal tool A tamper resistant security device, a removal tool, and methods of engaging and disengaging the tamper resistant security device are provided. The tamper resistant security device includes a locking pin including a head, a shaft, and a groove, a locking c... | 10/15/2002 |
| 5548981 | Lock assembly for a personal computer system enclosure A lock assembly is disclosed for small computers and similar electronic devices of the type that must be locked yet must permit access for repair even when the proper key is not available to the repair person without requiring that the expensive lock or i... | 08/27/1996 |
| 5452930 | Tamper evident security device A tamper indicating device for use on any container or enclosure has a security strap or other elongate connecting member for securing to between one part of a container or other item and a movable closure for the item, and a base unit for releasably trap... | 09/26/1995 |
| 4991889 | Seal with annular grooves Engagement lock comprising two members (1 and 2) which can be interlocked after they are passed through the locking rings (3, 4) of a container. The first member (1) is rod-shaped and has a head (5) which cannot pass through the locking rings (3, 4). Oppo... | 02/12/1991 |
| 4893853 | Padlock-type security seal A padlock-type security seal having tamper-indicating means to cause the shackle ends to break through and protrude from the walls of the seal body when serious attempts are made to remove the shackle. The seal includes a pair of slots each having a shoul... | 01/16/1990 |
| 4792167 | Releasable bolt devices for securing doors A releasable bolt device 1 for securing an emergency exit door 2 comprises a support structure 3 of box-like form, a bolt member 4 slidably mounted on the structure 3 for movement relative thereto, a compression spring 5 for urging the bolt member 4 away ... | 12/20/1988 |
| 4690444 | Security seal with rupturable wall The invention relates to a security seal comprising a flexible strip (7), a locking box (1) attached to a first end of the strip, and a free second end of the strip being insertable through an entry slot (4) in the locking box for non-detachable locking t... | 09/01/1987 |
