BE464915A - - Google Patents
Info
- Publication number
- BE464915A BE464915A BE464915DA BE464915A BE 464915 A BE464915 A BE 464915A BE 464915D A BE464915D A BE 464915DA BE 464915 A BE464915 A BE 464915A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
- H03F1/34—Negative-feedback-circuit arrangements with or without positive feedback
- H03F1/36—Negative-feedback-circuit arrangements with or without positive feedback in discharge-tube amplifiers
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K9/00—Medicinal preparations characterised by special physical form
- A61K9/14—Particulate form, e.g. powders, Processes for size reducing of pure drugs or the resulting products, Pure drug nanoparticles
- A61K9/16—Agglomerates; Granulates; Microbeadlets ; Microspheres; Pellets; Solid products obtained by spray drying, spray freeze drying, spray congealing,(multiple) emulsion solvent evaporation or extraction
Landscapes
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Epidemiology (AREA)
- Medicinal Chemistry (AREA)
- Pharmacology & Pharmacy (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Power Engineering (AREA)
- Amplifiers (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US588269A US2480163A (en) | 1945-04-14 | 1945-04-14 | Negative feedback amplifier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE464915A true BE464915A (de) |
Family
ID=24353175
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE464915D BE464915A (de) | 1945-04-14 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US2480163A (de) |
| BE (1) | BE464915A (de) |
| FR (1) | FR925551A (de) |
| GB (1) | GB610105A (de) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2647173A (en) * | 1947-11-17 | 1953-07-28 | Gen Electric | Multiple feedback system |
| US2724807A (en) * | 1950-02-16 | 1955-11-22 | Harold B Rex | Frequency-selective systems |
| US2915628A (en) * | 1953-07-03 | 1959-12-01 | Honeywell Regulator Co | Electrical control apparatus |
| US2934713A (en) * | 1954-09-17 | 1960-04-26 | Itt | Anode-follower amplifier |
| US3225298A (en) * | 1962-07-30 | 1965-12-21 | Hewlett Packard Co | Impedance to voltage converter including a positive feedback path for supplying impedance testing current |
| US3317851A (en) * | 1963-07-18 | 1967-05-02 | Julie Res Lab Inc | Frequency and amplification stabilized high power amplifier |
| US3525037A (en) * | 1967-11-14 | 1970-08-18 | Ampex | Method and apparatus for measuring subsurface electrical impedance utilizing first and second successively transmitted signals at different frequencies |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE403982A (de) * | 1933-11-11 | |||
| US2227048A (en) * | 1938-07-09 | 1940-12-31 | Bell Telephone Labor Inc | Negative feedback amplifier |
| US2244249A (en) * | 1938-12-31 | 1941-06-03 | Radio Patents Corp | Wave translation system |
-
0
- BE BE464915D patent/BE464915A/xx unknown
-
1945
- 1945-04-14 US US588269A patent/US2480163A/en not_active Expired - Lifetime
-
1946
- 1946-03-23 GB GB9021/46A patent/GB610105A/en not_active Expired
- 1946-04-12 FR FR925551D patent/FR925551A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR925551A (fr) | 1947-09-08 |
| GB610105A (en) | 1948-10-12 |
| US2480163A (en) | 1949-08-30 |