BE512498A - - Google Patents
Info
- Publication number
- BE512498A BE512498A BE512498DA BE512498A BE 512498 A BE512498 A BE 512498A BE 512498D A BE512498D A BE 512498DA BE 512498 A BE512498 A BE 512498A
- 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
- H04Q1/30—Signalling arrangements; Manipulation of signalling currents
- H04Q1/44—Signalling arrangements; Manipulation of signalling currents using alternate current
- H04Q1/444—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies
- H04Q1/45—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using multi-frequency signalling
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE303094X | 1951-06-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE512498A true BE512498A (https=) |
Family
ID=6109712
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE512498D BE512498A (https=) | 1951-06-30 |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE512498A (https=) |
| CH (1) | CH303094A (https=) |
| NL (1) | NL88076C (https=) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1008828B (de) * | 1955-04-22 | 1957-05-23 | Walter Gustav Wilhelm Staecker | Leuchtstofflampenarmatur zur Herstellung von Lichtbaendern |
-
0
- BE BE512498D patent/BE512498A/xx unknown
- NL NL88076D patent/NL88076C/xx active
-
1952
- 1952-06-18 CH CH303094D patent/CH303094A/de unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CH303094A (de) | 1954-11-15 |
| NL88076C (https=) |