NL107420C - - Google Patents
Info
- Publication number
- NL107420C NL107420C NL107420DA NL107420C NL 107420 C NL107420 C NL 107420C NL 107420D A NL107420D A NL 107420DA NL 107420 C NL107420 C NL 107420C
- Authority
- NL
- Netherlands
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H47/00—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current
- H01H47/02—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for modifying the operation of the relay
- H01H47/20—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for modifying the operation of the relay for producing frequency-selective operation of the relay
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE845051X | 1957-04-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL107420C true NL107420C (cs) |
Family
ID=20358470
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL227162D NL227162A (cs) | 1957-04-29 | ||
| NL107420D NL107420C (cs) | 1957-04-29 |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL227162D NL227162A (cs) | 1957-04-29 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US3035212A (cs) |
| DE (1) | DE1069694B (cs) |
| FR (1) | FR1195095A (cs) |
| GB (1) | GB845051A (cs) |
| NL (2) | NL107420C (cs) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3209207A (en) * | 1963-04-03 | 1965-09-28 | Westinghouse Electric Corp | Potential indicator and surge filter apparatus for use therein |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| USRE20317E (en) * | 1931-01-21 | 1937-03-30 | Nonlinear circuit | |
| FR44984E (fr) * | 1934-07-04 | 1935-05-01 | Siemens Ag | Procédé et dispositif pour le service d'installations de commande à distance à fréquence sonore |
| US2141943A (en) * | 1937-11-13 | 1938-12-27 | Gen Electric | Electric circuit |
| US2518865A (en) * | 1939-07-08 | 1950-08-15 | Illinois Testing Laboratories | Saturable reactor controlling circuits |
| DE898625C (de) * | 1941-12-03 | 1953-12-03 | Siemens Ag | Schaltungsanordnung zur Verringerung des Verhaeltnisses von Ansprechgleichstrom zu Abfallgleichstrom eines in einem Gleichstromkreis, insbesondere dem Anodenkreis einer Roehre, eingeschalteten mechanischen Relais |
| US2394786A (en) * | 1942-10-24 | 1946-02-12 | Gen Electric | Carrier current control system |
| US2694163A (en) * | 1951-03-16 | 1954-11-09 | Joseph G Sola | Voltage sensitive apparatus |
| DE936576C (de) * | 1952-10-07 | 1955-12-15 | Siemens Ag | Anordnung fuer Relais in Fernmeldeanlagen |
| US2931956A (en) * | 1956-02-06 | 1960-04-05 | Elliott & Evans Inc | Regenerative radio receiver for remotely controlled relay |
| US2849662A (en) * | 1956-04-24 | 1958-08-26 | Gen Electric | Static inverse time overvoltage device |
-
0
- NL NL227162D patent/NL227162A/xx unknown
- NL NL107420D patent/NL107420C/xx active
- DE DENDAT1069694D patent/DE1069694B/de active Pending
-
1958
- 1958-04-16 US US728924A patent/US3035212A/en not_active Expired - Lifetime
- 1958-04-25 GB GB13248/58A patent/GB845051A/en not_active Expired
- 1958-04-25 FR FR1195095D patent/FR1195095A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| NL227162A (cs) | |
| FR1195095A (fr) | 1959-11-13 |
| US3035212A (en) | 1962-05-15 |
| GB845051A (en) | 1960-08-17 |
| DE1069694B (cs) | 1959-11-26 |