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3380652
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Information
Patent Grant
3380652
References
Source
Patent Number
3,380,652
Date Filed
Not available
Date Issued
Tuesday, April 30, 1968
56 years ago
CPC
G06K21/06 - Apparatus or tools adapted for slotting or otherwise marking information-retrieval cards
Y10T83/8727 - Plural tools selectively engageable with single drive
Y10T83/8831 - Plural distinct cutting edges on same support
US Classifications
234 - Selective cutting
083 - Cutting
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