TREA

Selecting of marginally notched cards

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  • CPC
  • G06K21/002
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Parent Industries

GPHYSICS G06Computing G06KRECOGNITION OF DATA PRESENTATION OF DATA RECORD CARRIERS HANDLING RECORD CARRIERS G06K21/00Information retrieval from punched cards designed for manual use or handling by machine Apparatus for handling such cards

Current Industry

G06K21/002Selecting of marginally notched cards
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    Microfiche carrier assembly
    • Patent number 4,242,819
    • Issue date Jan 6, 1981
    • AM International, Inc.
    • William R. Swift
    • G06 - COMPUTING CALCULATING COUNTING
  • Information Patent Grant

    Record filing system
    • Patent number 4,126,227
    • Issue date Nov 21, 1978
    • Renato S. Leon
    • G06 - COMPUTING CALCULATING COUNTING
  • Information Patent Grant

    3874507
    • Patent number 3,874,507
    • Issue date Apr 1, 1975
    • G06 - COMPUTING CALCULATING COUNTING
  • Information Patent Grant

    3853224
    • Patent number 3,853,224
    • Issue date Dec 10, 1974
    • G06 - COMPUTING CALCULATING COUNTING
  • Information Patent Grant

    3206269
    • Patent number 3,206,269
    • Issue date Sep 14, 1965
    • G06 - COMPUTING CALCULATING COUNTING