BE416075A - - Google Patents
Info
- Publication number
- BE416075A BE416075A BE416075DA BE416075A BE 416075 A BE416075 A BE 416075A BE 416075D A BE416075D A BE 416075DA BE 416075 A BE416075 A BE 416075A
- 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)
- Radar Systems Or Details Thereof (AREA)
- Medicines Containing Antibodies Or Antigens For Use As Internal Diagnostic Agents (AREA)
- Burglar Alarm Systems (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL476880X | 1935-06-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE416075A true BE416075A (no) |
Family
ID=19936377
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE416075D BE416075A (no) | 1935-06-15 |
Country Status (2)
| Country | Link |
|---|---|
| BE (1) | BE416075A (no) |
| GB (1) | GB476880A (no) |
-
0
- BE BE416075D patent/BE416075A/xx unknown
-
1936
- 1936-06-15 GB GB16687/36A patent/GB476880A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB476880A (en) | 1937-12-15 |