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3622067
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Information
Patent Grant
3622067
References
Source
Patent Number
3,622,067
Date Filed
Not available
Date Issued
Tuesday, November 23, 1971
52 years ago
CPC
G06K21/06 - Apparatus or tools adapted for slotting or otherwise marking information-retrieval cards
B60R21/01 - Electrical circuits for triggering passive safety arrangements
Y10S83/917 - Notching
US Classifications
234 - Selective cutting
083 - Cutting
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