CH137786A - Macchina calcolatrice. - Google Patents

Macchina calcolatrice.

Info

Publication number
CH137786A
CH137786A CH137786DA CH137786A CH 137786 A CH137786 A CH 137786A CH 137786D A CH137786D A CH 137786DA CH 137786 A CH137786 A CH 137786A
Authority
CH
Switzerland
Prior art keywords
calcolating
macchina
calcolating macchina
Prior art date
Application number
Other languages
English (en)
Inventor
Alfredo Matticoli
Original Assignee
Alfredo Matticoli
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 Alfredo Matticoli filed Critical Alfredo Matticoli
Publication of CH137786A publication Critical patent/CH137786A/fr

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06G—ANALOGUE COMPUTERS
    • G06G3/00—Devices in which the computing operation is performed mechanically
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06G—ANALOGUE COMPUTERS
    • G06G3/00—Devices in which the computing operation is performed mechanically
    • G06G3/04—Devices in which the computing operation is performed mechanically for performing multiplications or divisions, e.g. variable-ratio gearing

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Mathematical Physics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Toys (AREA)
CH137786D 1926-12-04 1927-11-28 Macchina calcolatrice. CH137786A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT254529 1926-12-04

Publications (1)

Publication Number Publication Date
CH137786A true CH137786A (fr) 1930-01-31

Family

ID=3422971

Family Applications (1)

Application Number Title Priority Date Filing Date
CH137786D CH137786A (fr) 1926-12-04 1927-11-28 Macchina calcolatrice.

Country Status (2)

Country Link
US (1) US1842975A (fr)
CH (1) CH137786A (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2467419A (en) * 1943-10-16 1949-04-19 Marchant Calculating Machine Automatic decimal and shift control mechanism

Also Published As

Publication number Publication date
US1842975A (en) 1932-01-26

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