FR542184A - Adding machine - Google Patents

Adding machine

Info

Publication number
FR542184A
FR542184A FR542184DA FR542184A FR 542184 A FR542184 A FR 542184A FR 542184D A FR542184D A FR 542184DA FR 542184 A FR542184 A FR 542184A
Authority
FR
France
Prior art keywords
adding machine
machine
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)
Inventor
Rudolf Krause
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 FR542184A publication Critical patent/FR542184A/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
    • G06C7/00—Input mechanisms
    • G06C7/02—Keyboards
    • G06C7/06—Keyboards with one set of keys for each denomination

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Computing Systems (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
FR542184D 1921-06-10 1921-06-10 Adding machine Expired FR542184A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR542184T 1921-06-10

Publications (1)

Publication Number Publication Date
FR542184A true FR542184A (en) 1922-08-07

Family

ID=8930692

Family Applications (1)

Application Number Title Priority Date Filing Date
FR542184D Expired FR542184A (en) 1921-06-10 1921-06-10 Adding machine

Country Status (1)

Country Link
FR (1) FR542184A (en)

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