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There were 32 positions for possible hole locations, giving approximately 4.3 billion different keys. The key could easily be changed for each new guest by inserting a new key template in the lock that matched the new key. [2] In the early 1980s, the key card lock was electrified with LEDs that detected the holes. A keycard with a magnetic stripe
During the 1980s, the company grew exponentially, achieving sales of $100 million annually. In the 1990s, Unican Security Systems was supplying locks to the U.S. Pentagon and the United Nations . By 1999, the company had sales of nearly $500 million annually, making 4.5 million keys each day for automobile companies, hotels, residential ...
The 32 holes in the key gave 4.2 billion combinations, the precise same number as the population of the earth at the time. This lock system was patented in 29 countries. In 1975 Tor Sørnes launched the first recodable cardkey lock, the VingCard, which used a holecard plastic key.
VingCard Elsafe, whose origin was in Moss, Norway, is an international producer of hotel locking systems, electronic in-room safes and energy management systems.After inventing the first mechanical hole card operated lock in 1976, VingCard was acquired in 1994 by ASSA ABLOY, and merged with the electronic safe producer Elsafe [2] to form VingCard Elsafe in 2006.
For articles about locks used to raise and lower ships and boats, see Category:Locks (water navigation) The main article for this category is Lock (security device) . Wikimedia Commons has media related to Locks (security devices) .
Medeco's lock design features lock pins that are "chisel tipped" which can only be rotated by keys with correspondingly angled cuts. This serves to increase the difficulty of key reproduction. A slot along the length of the pin causes the sidebar to drop once the pin has been rotated to its correct orientation.
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