GB131583A - - Google Patents
Info
- Publication number
- GB131583A GB131583A GB131583DA GB131583A GB 131583 A GB131583 A GB 131583A GB 131583D A GB131583D A GB 131583DA GB 131583 A GB131583 A GB 131583A
- Authority
- GB
- United Kingdom
- Prior art keywords
- relay
- relays
- trunk
- operator
- exchange
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000004804 winding Methods 0.000 abstract 4
- 238000012360 testing method Methods 0.000 abstract 2
- 230000007423 decrease Effects 0.000 abstract 1
- 230000000881 depressing effect Effects 0.000 abstract 1
- 238000003780 insertion Methods 0.000 abstract 1
- 230000037431 insertion Effects 0.000 abstract 1
- 230000011664 signaling Effects 0.000 abstract 1
- 238000006467 substitution reaction Methods 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M5/00—Manual exchanges
- H04M5/08—Manual exchanges using connecting means other than cords
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Sub-Exchange Stations And Push- Button Telephones (AREA)
- Interface Circuits In Exchanges (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL5107T |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB131583A true GB131583A (enrdf_load_stackoverflow) |
Family
ID=19750186
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB131583D Active GB131583A (enrdf_load_stackoverflow) |
Country Status (3)
| Country | Link |
|---|---|
| DE (1) | DE373270C (enrdf_load_stackoverflow) |
| GB (1) | GB131583A (enrdf_load_stackoverflow) |
| NL (1) | NL5107C (enrdf_load_stackoverflow) |
-
0
- DE DENDAT373270D patent/DE373270C/de active Active
- NL NL5107D patent/NL5107C/xx active
- GB GB131583D patent/GB131583A/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| NL5107C (enrdf_load_stackoverflow) | |
| DE373270C (enrdf_load_stackoverflow) |
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