04105156 is referenced by 171 patents and cites 8 patents.

An identification card with interior circuits, including memory means, for use in a credit or identification system, into which the user enters a "secret" number and then the input gate to that part of the memory means is destroyed for security purposes.

Title
Identification system safeguarded against misuse
Application Number
5/751035
Publication Number
4105156
Application Date
December 16, 1976
Publication Date
August 8, 1978
Inventor
Jurgen Dethloff
Elbchaussee 239, Hamburg
DE
Agent
McGlew and Tuttle
IPC
G06K 7/06
G06K 19/06
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