BE493791A - - Google Patents
Info
- Publication number
- BE493791A BE493791A BE493791DA BE493791A BE 493791 A BE493791 A BE 493791A BE 493791D A BE493791D A BE 493791DA BE 493791 A BE493791 A BE 493791A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q1/00—Details of selecting apparatus or arrangements
- H04Q1/18—Electrical details
-
- 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
- H04Q3/62—Arrangements providing connection between main exchange and sub-exchange or satellite for connecting to private branch exchanges
- H04Q3/625—Arrangements in the private branch exchange
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- Astronomy & Astrophysics (AREA)
- General Physics & Mathematics (AREA)
- Interface Circuits In Exchanges (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL678319X | 1949-02-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE493791A true BE493791A (en:Method) |
Family
ID=19802353
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE493791D BE493791A (en:Method) | 1949-02-09 |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE493791A (en:Method) |
| FR (1) | FR1013615A (en:Method) |
| GB (1) | GB678319A (en:Method) |
| NL (2) | NL72168C (en:Method) |
-
0
- NL NL656502227A patent/NL144773B/xx unknown
- BE BE493791D patent/BE493791A/xx unknown
- NL NL72168D patent/NL72168C/xx active
-
1950
- 1950-02-03 GB GB2829/50A patent/GB678319A/en not_active Expired
- 1950-02-09 FR FR1013615D patent/FR1013615A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR1013615A (fr) | 1952-07-31 |
| NL72168C (en:Method) | |
| NL144773B (nl) | |
| GB678319A (en) | 1952-09-03 |