FR453937A - Adding machines - Google Patents
Adding machinesInfo
- Publication number
- FR453937A FR453937A FR453937DA FR453937A FR 453937 A FR453937 A FR 453937A FR 453937D A FR453937D A FR 453937DA FR 453937 A FR453937 A FR 453937A
- Authority
- FR
- France
- Prior art keywords
- adding machines
- machines
- 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
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
- G06C7/08—Keyboards with one set of keys for all denominations, e.g. ten-key board
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Computing Systems (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR453937T | 1913-02-03 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR453937A true FR453937A (en) | 1913-06-21 |
Family
ID=1493997
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR453937D Expired FR453937A (en) | 1913-02-03 | 1913-02-03 | Adding machines |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR453937A (en) |
-
1913
- 1913-02-03 FR FR453937D patent/FR453937A/en not_active Expired
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