NL32211C - - Google Patents
Info
- Publication number
- NL32211C NL32211C NL32211DA NL32211C NL 32211 C NL32211 C NL 32211C NL 32211D A NL32211D A NL 32211DA NL 32211 C NL32211 C NL 32211C
- Authority
- NL
- Netherlands
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/08—Indicating faults in circuits or apparatus
- H04M3/12—Marking faulty circuits "busy"; Enabling equipment to disengage itself from faulty circuits ; Using redundant circuits; Response of a circuit, apparatus or system to an error
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Monitoring And Testing Of Exchanges (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE364952X | 1930-03-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL32211C true NL32211C (en:Method) |
Family
ID=20308982
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL32211D NL32211C (en:Method) | 1930-03-29 |
Country Status (3)
| Country | Link |
|---|---|
| FR (1) | FR713810A (en:Method) |
| GB (1) | GB364952A (en:Method) |
| NL (1) | NL32211C (en:Method) |
-
0
- NL NL32211D patent/NL32211C/xx active
-
1931
- 1931-03-24 GB GB9024/31A patent/GB364952A/en not_active Expired
- 1931-03-24 FR FR713810D patent/FR713810A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR713810A (fr) | 1931-11-03 |
| GB364952A (en) | 1932-01-14 |