FR569985A - Perfectionnements aux appareils à calculer - Google Patents
Perfectionnements aux appareils à calculerInfo
- Publication number
- FR569985A FR569985A FR569985DA FR569985A FR 569985 A FR569985 A FR 569985A FR 569985D A FR569985D A FR 569985DA FR 569985 A FR569985 A FR 569985A
- Authority
- FR
- France
- Prior art keywords
- calculating devices
- calculating
- devices
- 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
- G06G—ANALOGUE COMPUTERS
- G06G1/00—Hand manipulated computing devices
- G06G1/02—Devices in which computing is effected by adding, subtracting, or comparing lengths of parallel or concentric graduated scales
- G06G1/04—Devices in which computing is effected by adding, subtracting, or comparing lengths of parallel or concentric graduated scales characterised by construction
- G06G1/08—Devices in which computing is effected by adding, subtracting, or comparing lengths of parallel or concentric graduated scales characterised by construction with circular or helical scales
- G06G1/085—Devices in which computing is effected by adding, subtracting, or comparing lengths of parallel or concentric graduated scales characterised by construction with circular or helical scales borne by a cylinder
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Mathematical Physics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB569985X | 1922-09-04 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR569985A true FR569985A (fr) | 1924-04-22 |
Family
ID=10478089
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR569985D Expired FR569985A (fr) | 1922-09-04 | 1923-08-21 | Perfectionnements aux appareils à calculer |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR569985A (fr) |
-
1923
- 1923-08-21 FR FR569985D patent/FR569985A/fr not_active Expired
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