NL36740C - - Google Patents
Info
- Publication number
- NL36740C NL36740C NL36740DA NL36740C NL 36740 C NL36740 C NL 36740C NL 36740D A NL36740D A NL 36740DA NL 36740 C NL36740 C NL 36740C
- Authority
- NL
- Netherlands
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
- H04M11/06—Simultaneous speech and data transmission, e.g. telegraphic transmission over the same conductors
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Telephonic Communication Services (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1249131A GB378064A (en) | 1931-04-28 | 1931-04-28 | Improvements in or relating to combined telegraph and telephone exchange systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL36740C true NL36740C (ja�@�@) |
Family
ID=10005570
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL36740D NL36740C (ja�@�@) | 1931-04-28 |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE386826A (ja�@�@) |
| FR (1) | FR732444A (ja�@�@) |
| GB (1) | GB378064A (ja�@�@) |
| NL (1) | NL36740C (ja�@�@) |
-
0
- BE BE386826D patent/BE386826A/xx unknown
- NL NL36740D patent/NL36740C/xx active
-
1931
- 1931-04-28 GB GB1249131A patent/GB378064A/en not_active Expired
-
1932
- 1932-02-29 FR FR732444D patent/FR732444A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB378064A (en) | 1932-07-28 |
| FR732444A (fr) | 1932-09-20 |
| BE386826A (ja�@�@) |