NL30479C - - Google Patents
Info
- Publication number
- NL30479C NL30479C NL30479DA NL30479C NL 30479 C NL30479 C NL 30479C NL 30479D A NL30479D A NL 30479DA NL 30479 C NL30479 C NL 30479C
- 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)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2038629A GB335935A (en) | 1929-07-03 | 1929-07-03 | Composite signalling system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL30479C true NL30479C (da) |
Family
ID=10145090
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL30479D NL30479C (da) | 1929-07-03 |
Country Status (4)
| Country | Link |
|---|---|
| DE (1) | DE543686C (da) |
| FR (1) | FR697064A (da) |
| GB (1) | GB335935A (da) |
| NL (1) | NL30479C (da) |
-
0
- NL NL30479D patent/NL30479C/xx active
-
1929
- 1929-07-03 GB GB2038629A patent/GB335935A/en not_active Expired
-
1930
- 1930-04-25 DE DE1930543686D patent/DE543686C/de not_active Expired
- 1930-06-03 FR FR697064D patent/FR697064A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR697064A (fr) | 1931-01-12 |
| GB335935A (en) | 1930-10-03 |
| DE543686C (de) | 1932-02-09 |