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
Links
Classifications
-
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06G—ANALOGUE COMPUTERS
- G06G3/00—Devices in which the computing operation is performed mechanically
-
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; 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)
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)
| 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 |
-
1927
- 1927-11-28 CH CH137786D patent/CH137786A/fr unknown
- 1927-12-05 US US28794427 patent/US1842975A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| US1842975A (en) | 1932-01-26 |
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