NL42520C - - Google Patents
Info
- Publication number
- NL42520C NL42520C NL42520DA NL42520C NL 42520 C NL42520 C NL 42520C NL 42520D A NL42520D A NL 42520DA NL 42520 C NL42520 C NL 42520C
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Interface Circuits In Exchanges (AREA)
- Telephonic Communication Services (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE436624X | 1934-02-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL42520C true NL42520C (https=) |
Family
ID=6506921
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL42520D NL42520C (https=) | 1934-02-09 |
Country Status (5)
| Country | Link |
|---|---|
| BE (1) | BE407758A (https=) |
| DK (1) | DK53547C (https=) |
| FR (1) | FR785950A (https=) |
| GB (1) | GB436624A (https=) |
| NL (1) | NL42520C (https=) |
-
0
- NL NL42520D patent/NL42520C/xx active
- BE BE407758D patent/BE407758A/xx unknown
-
1935
- 1935-02-08 FR FR785950D patent/FR785950A/fr not_active Expired
- 1935-02-08 DK DK53547D patent/DK53547C/da active
- 1935-02-11 GB GB4370/35A patent/GB436624A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB436624A (en) | 1935-10-15 |
| DK53547C (da) | 1937-09-06 |
| BE407758A (https=) | |
| FR785950A (fr) | 1935-08-22 |