NL56182C - - Google Patents
Info
- Publication number
- NL56182C NL56182C NL56182DC NL56182C NL 56182 C NL56182 C NL 56182C NL 56182D C NL56182D C NL 56182DC NL 56182 C NL56182 C NL 56182C
- Authority
- NL
- Netherlands
Links
Classifications
-
- 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)
- Structure Of Telephone Exchanges (AREA)
- Interface Circuits In Exchanges (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2021039A GB531902A (en) | 1939-07-11 | 1939-07-11 | Improvements in or relating to printing telegraph exchange systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL56182C true NL56182C (US20090163788A1-20090625-C00002.png) |
Family
ID=10142241
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL56182D NL56182C (US20090163788A1-20090625-C00002.png) | 1939-07-11 |
Country Status (5)
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2599344A (en) * | 1941-07-26 | 1952-06-03 | Roelof M M Oberman | Telegraph exchange for lines with simplex or duplex characteristics |
| NL57013C (US20090163788A1-20090625-C00002.png) * | 1941-07-26 | |||
| US2602117A (en) * | 1943-09-02 | 1952-07-01 | Roelof M M Oberman | Line adapting telegraph repeater |
-
0
- BE BE441590D patent/BE441590A/xx unknown
- NL NL56182D patent/NL56182C/xx active
-
1939
- 1939-07-11 GB GB2021039A patent/GB531902A/en not_active Expired
-
1940
- 1940-09-19 FR FR867233D patent/FR867233A/fr not_active Expired
-
1950
- 1950-10-01 DE DEB10746A patent/DE897265C/de not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB531902A (en) | 1941-01-14 |
| FR867233A (fr) | 1941-10-07 |
| DE897265C (de) | 1953-11-19 |
| BE441590A (US20090163788A1-20090625-C00002.png) |
