BE483071A - - Google Patents
Info
- Publication number
- BE483071A BE483071A BE483071DA BE483071A BE 483071 A BE483071 A BE 483071A BE 483071D A BE483071D A BE 483071DA BE 483071 A BE483071 A BE 483071A
- Authority
- BE
- Belgium
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D17/00—Caps for supporting mine roofs
- E21D17/02—Cantilever extension or similar protecting devices
- E21D17/0206—Hydraulically operated extension devices
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L13/00—Details of the apparatus or circuits covered by groups H04L15/00 or H04L17/00
- H04L13/02—Details not particular to receiver or transmitter
- H04L13/10—Distributors
- H04L13/12—Non-mechanical distributors, e.g. relay distributors
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/20—Repeater circuits; Relay circuits
- H04L25/202—Repeater circuits; Relay circuits using mechanical devices
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/20—Repeater circuits; Relay circuits
- H04L25/205—Repeater circuits; Relay circuits using tuning forks or vibrating reeds
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Power Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Relay Circuits (AREA)
- Interface Circuits In Exchanges (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL283927X | 1942-10-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE483071A true BE483071A (en:Method) |
Family
ID=19782417
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE483071D BE483071A (en:Method) | 1942-10-06 |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE483071A (en:Method) |
| CH (1) | CH283927A (en:Method) |
| DE (1) | DE885561C (en:Method) |
| NL (1) | NL58845C (en:Method) |
-
0
- NL NL58845D patent/NL58845C/xx active
- BE BE483071D patent/BE483071A/xx unknown
-
1947
- 1947-12-19 CH CH283927D patent/CH283927A/fr unknown
-
1950
- 1950-06-07 DE DEST1232A patent/DE885561C/de not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CH283927A (fr) | 1952-06-30 |
| DE885561C (de) | 1953-08-06 |
| NL58845C (en:Method) |