DE307132C - - Google Patents

Info

Publication number
DE307132C
DE307132C DENDAT307132D DE307132DA DE307132C DE 307132 C DE307132 C DE 307132C DE NDAT307132 D DENDAT307132 D DE NDAT307132D DE 307132D A DE307132D A DE 307132DA DE 307132 C DE307132 C DE 307132C
Authority
DE
Germany
Prior art keywords
earth
resistance
lines
switched
movement mechanism
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
Application number
DENDAT307132D
Other languages
German (de)
English (en)
Publication of DE307132C publication Critical patent/DE307132C/de
Active legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B13/00—Transmission systems characterised by the medium used for transmission, not provided for in groups H04B3/00 - H04B11/00
    • H04B13/02—Transmission systems in which the medium consists of the earth or a large mass of water thereon, e.g. earth telegraphy

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Train Traffic Observation, Control, And Security (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)
  • Locating Faults (AREA)
DENDAT307132D Active DE307132C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE307132T

Publications (1)

Publication Number Publication Date
DE307132C true DE307132C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Family

ID=6121343

Family Applications (2)

Application Number Title Priority Date Filing Date
DENDAT307132D Active DE307132C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DENDAT309113D Active DE309113C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Family Applications After (1)

Application Number Title Priority Date Filing Date
DENDAT309113D Active DE309113C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Country Status (1)

Country Link
DE (2) DE309113C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Also Published As

Publication number Publication date
DE309113C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

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