FR1598293A - - Google Patents

Info

Publication number
FR1598293A
FR1598293A FR1598293DA FR1598293A FR 1598293 A FR1598293 A FR 1598293A FR 1598293D A FR1598293D A FR 1598293DA FR 1598293 A FR1598293 A FR 1598293A
Authority
FR
France
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)
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 filed Critical
Application granted granted Critical
Publication of FR1598293A publication Critical patent/FR1598293A/fr
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06C—DIGITAL COMPUTERS IN WHICH ALL THE COMPUTATION IS EFFECTED MECHANICALLY
    • G06C7/00—Input mechanisms
    • G06C7/02—Keyboards
    • G06C7/04—Interlocking devices, e.g. between keys
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M11/00—Coding in connection with keyboards or like devices, i.e. coding of the position of operated keys
    • H03M11/02—Details

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Computing Systems (AREA)
  • General Physics & Mathematics (AREA)
  • Push-Button Switches (AREA)
  • Mechanical Control Devices (AREA)
FR1598293D 1968-01-10 1968-11-29 Expired FR1598293A (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US69691968A 1968-01-10 1968-01-10

Publications (1)

Publication Number Publication Date
FR1598293A true FR1598293A (de) 1970-07-06

Family

ID=24799059

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1598293D Expired FR1598293A (de) 1968-01-10 1968-11-29

Country Status (4)

Country Link
US (1) US3516604A (de)
DE (1) DE1809612A1 (de)
FR (1) FR1598293A (de)
GB (1) GB1243640A (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3724750A (en) * 1971-04-06 1973-04-03 Anker Werke Ag Device for registering business machines
US3703987A (en) * 1971-09-01 1972-11-28 Ncr Co Keyboard locking device
USD311913S (en) 1987-04-22 1990-11-06 International Business Machines Corporation Keycap

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1900103A (en) * 1933-03-07 Calculating machine
US2715498A (en) * 1955-08-16 Locking means for cash registers
US2665067A (en) * 1949-04-29 1954-01-05 Wassef Atalla Megalli Apparatus for effecting a desired sequence of operations
US3024988A (en) * 1959-07-01 1962-03-13 Monroe Calculating Machine Keyboard mechanism

Also Published As

Publication number Publication date
DE1809612A1 (de) 1969-08-07
GB1243640A (en) 1971-08-25
US3516604A (en) 1970-06-23

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Legal Events

Date Code Title Description
ST Notification of lapse