NL53237C - - Google Patents
Info
- Publication number
- NL53237C NL53237C NL53237DA NL53237C NL 53237 C NL53237 C NL 53237C NL 53237D A NL53237D A NL 53237DA NL 53237 C NL53237 C NL 53237C
- Authority
- NL
- Netherlands
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q3/00—Selecting arrangements
- H04Q3/58—Arrangements providing connection between main exchange and sub-exchange or satellite
Landscapes
- Physics & Mathematics (AREA)
- Astronomy & Astrophysics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Interface Circuits In Exchanges (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1937S0129641 DE696280C (de) | 1937-11-23 | 1937-11-23 | Schaltungsanordnung fuer Fernsprechanlagen mit Haupt- und Unteraemtern und Waehlerbetrieb |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL53237C true NL53237C (forum.php) |
Family
ID=7538187
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL53237D NL53237C (forum.php) | 1937-11-23 |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE696280C (forum.php) |
| NL (1) | NL53237C (forum.php) |
-
0
- NL NL53237D patent/NL53237C/xx active
-
1937
- 1937-11-23 DE DE1937S0129641 patent/DE696280C/de not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE696280C (de) | 1940-09-17 |