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Information retrieval from punched cards designed for manual use or handling by machine Apparatus for handling such cards
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Industry
CPC
G06K21/00
This industry / category may be too specific. Please go to a parent level for more data
Parent Industries
G
PHYSICS
G06
Computing
G06K
RECOGNITION OF DATA PRESENTATION OF DATA RECORD CARRIERS HANDLING RECORD CARRIERS
Current Industry
G06K21/00
Information retrieval from punched cards designed for manual use or handling by machine Apparatus for handling such cards
Sub Industries
G06K21/002
Selecting of marginally notched cards
G06K21/005
the selected cards being displaced laterally relative to the remaining stationary card-file
G06K21/007
the selected cards being restrained and the remaining card-file being laterally displaced
G06K21/02
in which coincidence of markings is sensed mechanically
G06K21/04
in which coincidence of markings is sensed optically
G06K21/06
Apparatus or tools adapted for slotting or otherwise marking information-retrieval cards
G06K21/08
Apparatus or tools for correcting punching or slotting errors and regeneration of record carriers
G06K21/085
for punched tapes
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