NL53937C - - Google Patents
Info
- Publication number
- NL53937C NL53937C NL53937DA NL53937C NL 53937 C NL53937 C NL 53937C NL 53937D A NL53937D A NL 53937DA NL 53937 C NL53937 C NL 53937C
- Authority
- NL
- Netherlands
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
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
- A47B2200/00—General construction of tables or desks
- A47B2200/0035—Tables or desks with features relating to adjustability or folding
- A47B2200/0039—Two position height adjustable table
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Amplifiers (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE214293X | 1939-04-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL53937C true NL53937C (pt) |
Family
ID=5817929
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL53937D NL53937C (pt) | 1939-04-06 | ||
| NL97451D NL97451B (pt) | 1939-04-06 |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL97451D NL97451B (pt) | 1939-04-06 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US2313014A (pt) |
| CH (1) | CH214293A (pt) |
| FR (1) | FR868650A (pt) |
| NL (2) | NL97451B (pt) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2573523A (en) * | 1946-06-24 | 1951-10-30 | Gen Electric | Feedback amplifier |
| DE820451C (de) * | 1950-02-09 | 1951-11-12 | Telefunken Gmbh | Niederfrequenzverstaerker mit Spannungsgegenkopplung |
| US3439280A (en) * | 1965-09-23 | 1969-04-15 | Siemens Ag | Circuit arrangement for the regulation of dynamics of electrical signals |
| US3638133A (en) * | 1970-04-10 | 1972-01-25 | Bell Telephone Labor Inc | Feedback amplifier with bridge-stabilized output impedance |
-
0
- NL NL53937D patent/NL53937C/xx active
- NL NL97451D patent/NL97451B/xx unknown
-
1940
- 1940-03-30 CH CH214293D patent/CH214293A/de unknown
- 1940-05-23 US US336777A patent/US2313014A/en not_active Expired - Lifetime
- 1940-12-30 FR FR868650D patent/FR868650A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US2313014A (en) | 1943-03-02 |
| NL97451B (pt) | |
| CH214293A (de) | 1941-04-15 |
| FR868650A (fr) | 1942-01-09 |