BE378298A - - Google Patents
Info
- Publication number
- BE378298A BE378298A BE378298DA BE378298A BE 378298 A BE378298 A BE 378298A BE 378298D A BE378298D A BE 378298DA BE 378298 A BE378298 A BE 378298A
- 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
- H04M1/27—Devices whereby a plurality of signals may be stored simultaneously
- H04M1/272—Devices whereby a plurality of signals may be stored simultaneously with provision for storing only one subscriber number at a time, e.g. by keyboard or dial
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Transmission Devices (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1862601X | 1930-04-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE378298A true BE378298A (en:Method) |
Family
ID=10892278
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE378298D BE378298A (en:Method) | 1930-04-04 |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US1862601A (en:Method) |
| BE (1) | BE378298A (en:Method) |
| FR (1) | FR713591A (en:Method) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2451358A (en) * | 1944-08-24 | 1948-10-12 | Automatic Elect Lab | Impulse transmitter |
| US2947824A (en) * | 1956-05-21 | 1960-08-02 | Western Electric Co | Apparatus for testing automatic telephone exchange equipment |
-
0
- BE BE378298D patent/BE378298A/xx unknown
-
1931
- 1931-03-12 US US522060A patent/US1862601A/en not_active Expired - Lifetime
- 1931-03-20 FR FR713591D patent/FR713591A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR713591A (fr) | 1931-10-29 |
| US1862601A (en) | 1932-06-14 |