NL55441C - - Google Patents
Info
- Publication number
- NL55441C NL55441C NL55441DA NL55441C NL 55441 C NL55441 C NL 55441C NL 55441D A NL55441D A NL 55441DA NL 55441 C NL55441 C NL 55441C
- Authority
- NL
- Netherlands
Links
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06G—ANALOGUE COMPUTERS
- G06G7/00—Devices in which the computing operation is performed by varying electric or magnetic quantities
- G06G7/12—Arrangements for performing computing operations, e.g. operational amplifiers
- G06G7/22—Arrangements for performing computing operations, e.g. operational amplifiers for evaluating trigonometric functions; for conversion of co-ordinates; for computations involving vector quantities
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06G—ANALOGUE COMPUTERS
- G06G7/00—Devices in which the computing operation is performed by varying electric or magnetic quantities
- G06G7/12—Arrangements for performing computing operations, e.g. operational amplifiers
- G06G7/16—Arrangements for performing computing operations, e.g. operational amplifiers for multiplication or division
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mathematical Physics (AREA)
- Theoretical Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Software Systems (AREA)
- Power Engineering (AREA)
- Algebra (AREA)
- Mathematical Analysis (AREA)
- Mathematical Optimization (AREA)
- Pure & Applied Mathematics (AREA)
- Measurement Of Resistance Or Impedance (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH520228X | 1938-05-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL55441C true NL55441C (US06573293-20030603-C00009.png) |
Family
ID=4517903
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL55441D NL55441C (US06573293-20030603-C00009.png) | 1938-05-25 |
Country Status (5)
| Country | Link |
|---|---|
| CH (2) | CH210859A (US06573293-20030603-C00009.png) |
| DE (1) | DE750780C (US06573293-20030603-C00009.png) |
| FR (2) | FR51216E (US06573293-20030603-C00009.png) |
| GB (2) | GB520228A (US06573293-20030603-C00009.png) |
| NL (1) | NL55441C (US06573293-20030603-C00009.png) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2497883A (en) * | 1943-01-28 | 1950-02-21 | Sperry Corp | Electronic computer |
| US2652979A (en) * | 1945-08-01 | 1953-09-22 | Chance Britton | Arrangement for providing corrections in ground-position-indicating systems |
| NL77787C (US06573293-20030603-C00009.png) * | 1950-05-06 |
-
0
- NL NL55441D patent/NL55441C/xx active
- FR FR851948D patent/FR851948A/fr not_active Expired
-
1938
- 1938-05-25 CH CH210859D patent/CH210859A/de unknown
- 1938-05-31 DE DEC54040D patent/DE750780C/de not_active Expired
- 1938-08-16 GB GB24159/38A patent/GB520228A/en not_active Expired
-
1939
- 1939-06-10 CH CH212584D patent/CH212584A/de unknown
-
1940
- 1940-05-30 FR FR51216D patent/FR51216E/fr not_active Expired
- 1940-06-06 GB GB9937/40A patent/GB541761A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE750780C (de) | 1945-01-26 |
| CH210859A (de) | 1940-08-15 |
| GB520228A (en) | 1940-04-18 |
| FR51216E (fr) | 1941-12-20 |
| CH212584A (de) | 1940-11-30 |
| GB541761A (en) | 1941-12-10 |
| FR851948A (US06573293-20030603-C00009.png) | 1940-01-18 |
