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
Application number
Priority date (The priority date 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 date listed.)
Publication of BE483071A publication Critical patent/BE483071A/xx

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)
BE483071D 1942-10-06 BE483071A (xx)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL283927X 1942-10-06

Publications (1)

Publication Number Publication Date
BE483071A true BE483071A (xx)

Family

ID=19782417

Family Applications (1)

Application Number Title Priority Date Filing Date
BE483071D BE483071A (xx) 1942-10-06

Country Status (4)

Country Link
BE (1) BE483071A (xx)
CH (1) CH283927A (xx)
DE (1) DE885561C (xx)
NL (1) NL58845C (xx)

Also Published As

Publication number Publication date
DE885561C (de) 1953-08-06
NL58845C (xx)
CH283927A (fr) 1952-06-30

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