BE442021A - - Google Patents
Info
- Publication number
- BE442021A BE442021A BE442021DA BE442021A BE 442021 A BE442021 A BE 442021A BE 442021D A BE442021D A BE 442021DA BE 442021 A BE442021 A BE 442021A
- Authority
- BE
- Belgium
Links
Classifications
-
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; 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
- G06G7/163—Arrangements for performing computing operations, e.g. operational amplifiers for multiplication or division using a variable impedance controlled by one of the input signals, variable amplification or transfer function
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mathematical Physics (AREA)
- Theoretical Computer Science (AREA)
- Power Engineering (AREA)
- Software Systems (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Adjustable Resistors (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE50740X | 1940-07-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE442021A true BE442021A (enrdf_load_html_response) |
Family
ID=20265643
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE442021D BE442021A (enrdf_load_html_response) | 1940-07-05 |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE442021A (enrdf_load_html_response) |
| CH (1) | CH227178A (enrdf_load_html_response) |
| FR (1) | FR887754A (enrdf_load_html_response) |
| GB (1) | GB553947A (enrdf_load_html_response) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2454520A (en) * | 1945-03-23 | 1948-11-23 | Fairchild Camera Instr Co | Ratio-measuring system |
| US2665066A (en) * | 1945-12-01 | 1954-01-05 | Bailey Meter Co | Electric calculating circuits |
| US2678163A (en) * | 1949-12-10 | 1954-05-11 | John O Evans Jr | Computing and predicting device |
| US2713457A (en) * | 1950-06-09 | 1955-07-19 | Phillips Petroleum Co | Computer |
| US2636151A (en) * | 1952-01-31 | 1953-04-21 | Bailey Meter Co | Measuring system |
| US3076603A (en) * | 1956-03-14 | 1963-02-05 | Tinius Olsen Testing Mach Co | Materials testing equipment |
| US3114037A (en) * | 1957-01-07 | 1963-12-10 | William R Brownlee | Measuring and controlling method and apparatus |
| US2998186A (en) * | 1958-04-25 | 1961-08-29 | Honeywell Regulator Co | Automatic electrical analogue computer |
-
0
- BE BE442021D patent/BE442021A/xx unknown
-
1941
- 1941-06-10 FR FR887754D patent/FR887754A/fr not_active Expired
- 1941-06-11 CH CH227178D patent/CH227178A/de unknown
- 1941-08-28 GB GB11003/41A patent/GB553947A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CH227178A (de) | 1943-05-31 |
| GB553947A (en) | 1943-06-11 |
| FR887754A (fr) | 1943-11-23 |