Coding device for magnetic cards
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United States of America Patent
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-
Nov 23, 1993
Grant Date -
N/A
app pub date -
Dec 7, 1990
filing date -
Jun 11, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A device for coding key cards for magnetically operating locks and the incorporating of such a device which is as simple as possible plus the corresponding key cards in an entrance control system. The key card has, in addition to the locking code, a second identity coding, both of the codings being produced, insofar as possible, in a single passage through the device.
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