BE493792A - - Google Patents
Info
- Publication number
- BE493792A BE493792A BE493792DA BE493792A BE 493792 A BE493792 A BE 493792A BE 493792D A BE493792D A BE 493792DA BE 493792 A BE493792 A BE 493792A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/26—Devices for calling a subscriber
- H04M1/515—Devices for calling a subscriber by generating or selecting signals other than trains of pulses of similar shape, or signals other than currents of one or more different frequencies, e.g. generation of dc signals of alternating polarity, coded pulses or impedance dialling
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Interface Circuits In Exchanges (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL691108X | 1949-02-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE493792A true BE493792A (pl) |
Family
ID=19807507
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE493792D BE493792A (pl) | 1949-02-09 |
Country Status (2)
| Country | Link |
|---|---|
| BE (1) | BE493792A (pl) |
| GB (1) | GB691108A (pl) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1018912B (de) * | 1951-12-07 | 1957-11-07 | Siemens Ag | Relaiskettenschaltung zur Abzaehlung von Schaltschritten |
-
0
- BE BE493792D patent/BE493792A/xx unknown
-
1950
- 1950-02-03 GB GB2830/50A patent/GB691108A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1018912B (de) * | 1951-12-07 | 1957-11-07 | Siemens Ag | Relaiskettenschaltung zur Abzaehlung von Schaltschritten |
Also Published As
| Publication number | Publication date |
|---|---|
| GB691108A (en) | 1953-05-06 |