FR1338543A - Retainer addition-subtractor - Google Patents

Retainer addition-subtractor

Info

Publication number
FR1338543A
FR1338543A FR907189A FR907189A FR1338543A FR 1338543 A FR1338543 A FR 1338543A FR 907189 A FR907189 A FR 907189A FR 907189 A FR907189 A FR 907189A FR 1338543 A FR1338543 A FR 1338543A
Authority
FR
France
Prior art keywords
subtractor
retainer
addition
retainer addition
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
FR907189A
Other languages
French (fr)
Inventor
Pierre Lapeyre
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
Priority to FR907189A priority Critical patent/FR1338543A/en
Application granted granted Critical
Publication of FR1338543A publication Critical patent/FR1338543A/en
Priority to FR961041A priority patent/FR85129E/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06C—DIGITAL COMPUTERS IN WHICH ALL THE COMPUTATION IS EFFECTED MECHANICALLY
    • G06C1/00—Computing aids in which the computing members form at least part of the displayed result and are manipulated directly by hand, e.g. abacuses or pocket adding devices

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Mathematical Physics (AREA)
  • Computer Hardware Design (AREA)
  • Computing Systems (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
FR907189A 1962-08-17 1962-08-17 Retainer addition-subtractor Expired FR1338543A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR907189A FR1338543A (en) 1962-08-17 1962-08-17 Retainer addition-subtractor
FR961041A FR85129E (en) 1962-08-17 1964-01-21 Retainer addition-subtractor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR907189A FR1338543A (en) 1962-08-17 1962-08-17 Retainer addition-subtractor

Publications (1)

Publication Number Publication Date
FR1338543A true FR1338543A (en) 1963-09-27

Family

ID=8785336

Family Applications (1)

Application Number Title Priority Date Filing Date
FR907189A Expired FR1338543A (en) 1962-08-17 1962-08-17 Retainer addition-subtractor

Country Status (1)

Country Link
FR (1) FR1338543A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2538926A1 (en) * 1983-01-05 1984-07-06 Pince Gerard Manual counting machine for illiterates

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2538926A1 (en) * 1983-01-05 1984-07-06 Pince Gerard Manual counting machine for illiterates

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