FR976957A - Explorer device for punch card machines - Google Patents

Explorer device for punch card machines

Info

Publication number
FR976957A
FR976957A FR976957DA FR976957A FR 976957 A FR976957 A FR 976957A FR 976957D A FR976957D A FR 976957DA FR 976957 A FR976957 A FR 976957A
Authority
FR
France
Prior art keywords
punch card
card machines
explorer device
explorer
machines
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
Other languages
French (fr)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Compagnie des Machines Bull SA
Original Assignee
Compagnie des Machines Bull SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Compagnie des Machines Bull SA filed Critical Compagnie des Machines Bull SA
Application granted granted Critical
Publication of FR976957A publication Critical patent/FR976957A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Credit Cards Or The Like (AREA)
FR976957D 1942-05-20 1942-05-20 Explorer device for punch card machines Expired FR976957A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR971148X 1942-05-20

Publications (1)

Publication Number Publication Date
FR976957A true FR976957A (en) 1951-03-27

Family

ID=9511108

Family Applications (1)

Application Number Title Priority Date Filing Date
FR976957D Expired FR976957A (en) 1942-05-20 1942-05-20 Explorer device for punch card machines

Country Status (2)

Country Link
DE (1) DE971148C (en)
FR (1) FR976957A (en)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1633936A (en) * 1924-02-25 1927-06-28 Tabulating Machine Co Perforation-reading device for sorting machines and the like
DE501894C (en) * 1927-02-16 1930-07-07 Gustav Tauschek Filling device for punch card evaluation machines
AT112413B (en) * 1928-02-02 1929-03-11 Gustav Tauschek Sensing device for punch card evaluation machines.

Also Published As

Publication number Publication date
DE971148C (en) 1958-12-18

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