FI51415B - - Google Patents
Info
- Publication number
- FI51415B FI51415B FI98465A FI98465A FI51415B FI 51415 B FI51415 B FI 51415B FI 98465 A FI98465 A FI 98465A FI 98465 A FI98465 A FI 98465A FI 51415 B FI51415 B FI 51415B
- Authority
- FI
- Finland
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q3/00—Selecting arrangements
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Rectifiers (AREA)
- Relay Circuits (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1964S0090735 DE1276751B (en) | 1964-04-24 | 1964-04-24 | Circuit arrangement for monitoring signal lines for their switching state in telecommunication systems, in particular telephone systems |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FI51415B true FI51415B (en) | 1976-08-31 |
| FI51415C FI51415C (en) | 1976-12-10 |
Family
ID=7516036
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FI98465A FI51415C (en) | 1964-04-24 | 1965-04-22 | Switching system for monitoring the switching state of signal lines in communications, especially in telephone exchanges. |
Country Status (8)
| Country | Link |
|---|---|
| AT (1) | AT254277B (en) |
| BE (1) | BE662958A (en) |
| CH (1) | CH433458A (en) |
| DE (1) | DE1276751B (en) |
| FI (1) | FI51415C (en) |
| GB (1) | GB1072762A (en) |
| NL (1) | NL6504780A (en) |
| SE (1) | SE353203B (en) |
-
1964
- 1964-04-24 DE DE1964S0090735 patent/DE1276751B/en active Pending
-
1965
- 1965-04-14 NL NL6504780A patent/NL6504780A/xx unknown
- 1965-04-20 AT AT362165A patent/AT254277B/en active
- 1965-04-22 FI FI98465A patent/FI51415C/en active
- 1965-04-22 CH CH555865A patent/CH433458A/en unknown
- 1965-04-23 BE BE662958D patent/BE662958A/xx unknown
- 1965-04-23 GB GB1716965A patent/GB1072762A/en not_active Expired
- 1965-04-23 SE SE537165A patent/SE353203B/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| GB1072762A (en) | 1967-06-21 |
| SE353203B (en) | 1973-01-22 |
| DE1276751B (en) | 1968-09-05 |
| FI51415C (en) | 1976-12-10 |
| AT254277B (en) | 1967-05-10 |
| NL6504780A (en) | 1965-10-25 |
| CH433458A (en) | 1967-04-15 |
| BE662958A (en) | 1965-10-25 |