NL85920C - - Google Patents
Info
- Publication number
- NL85920C NL85920C NL85920DA NL85920C NL 85920 C NL85920 C NL 85920C NL 85920D A NL85920D A NL 85920DA NL 85920 C NL85920 C NL 85920C
- Authority
- NL
- Netherlands
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M19/00—Current supply arrangements for telephone systems
- H04M19/02—Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/64—Driving arrangements between movable part of magnetic circuit and contact
- H01H50/74—Mechanical means for producing a desired natural frequency of operation of the contacts, e.g. for self-interrupter
- H01H50/76—Mechanical means for producing a desired natural frequency of operation of the contacts, e.g. for self-interrupter using reed or blade spring
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE299866X | 1951-06-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL85920C true NL85920C (enExample) |
Family
ID=6091407
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL85920D NL85920C (enExample) | 1951-06-27 |
Country Status (3)
| Country | Link |
|---|---|
| CH (1) | CH299866A (enExample) |
| FR (1) | FR1053323A (enExample) |
| NL (1) | NL85920C (enExample) |
-
0
- NL NL85920D patent/NL85920C/xx active
-
1952
- 1952-03-04 CH CH299866D patent/CH299866A/de unknown
- 1952-04-02 FR FR1053323D patent/FR1053323A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR1053323A (fr) | 1954-02-02 |
| CH299866A (de) | 1954-06-30 |