LU31861A1 - - Google Patents
Info
- Publication number
- LU31861A1 LU31861A1 LU31861DA LU31861A1 LU 31861 A1 LU31861 A1 LU 31861A1 LU 31861D A LU31861D A LU 31861DA LU 31861 A1 LU31861 A1 LU 31861A1
- Authority
- LU
- Luxembourg
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
- H04M1/274—Devices whereby a plurality of signals may be stored simultaneously with provision for storing more than one subscriber number at a time, e.g. using toothed disc
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Transmission Devices (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BE307142X | 1951-12-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| LU31861A1 true LU31861A1 (en) |
Family
ID=3867497
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| LU31861D LU31861A1 (en) | 1951-12-14 |
Country Status (5)
| Country | Link |
|---|---|
| BE (1) | BE507830A (en) |
| CH (1) | CH307142A (en) |
| DE (1) | DE971015C (en) |
| LU (1) | LU31861A1 (en) |
| NL (2) | NL174589B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1034700B (en) * | 1956-07-25 | 1958-07-24 | Hermann Ries Dipl Ing | Self-dialing device for telephones to generate electricity for the number to be dialed |
| DE1168978B (en) * | 1960-10-13 | 1964-04-30 | Mc Graw Edison Co | Method for recording and reproducing call numbers at subscriber stations of telecommunication systems, in particular telephone systems, and device for carrying out the method |
| DE1278529B (en) * | 1966-02-12 | 1968-09-26 | Tele Master G M B H | Device in telephone and teleprinter systems for sending electrical surges |
-
0
- NL NL81805D patent/NL81805C/xx active
- NL NLAANVRAGE7502338,B patent/NL174589B/en unknown
- BE BE507830D patent/BE507830A/xx unknown
- LU LU31861D patent/LU31861A1/xx unknown
-
1952
- 1952-12-08 CH CH307142D patent/CH307142A/en unknown
- 1952-12-11 DE DED13826A patent/DE971015C/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| NL174589B (en) | |
| DE971015C (en) | 1958-11-27 |
| CH307142A (en) | 1955-05-15 |
| NL81805C (en) | |
| BE507830A (en) |