NL6911984A - - Google Patents

Info

Publication number
NL6911984A
NL6911984A NL6911984A NL6911984A NL6911984A NL 6911984 A NL6911984 A NL 6911984A NL 6911984 A NL6911984 A NL 6911984A NL 6911984 A NL6911984 A NL 6911984A NL 6911984 A NL6911984 A NL 6911984A
Authority
NL
Netherlands
Application number
NL6911984A
Other versions
NL144534B (nl
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.)
Filing date
Publication date
Application filed filed Critical
Publication of NL6911984A publication Critical patent/NL6911984A/xx
Publication of NL144534B publication Critical patent/NL144534B/xx

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L1/00—Devices along the route controlled by interaction with the vehicle or train
    • B61L1/18—Railway track circuits
    • B61L1/181—Details
    • B61L1/187—Use of alternating current

Landscapes

  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Mechanical Engineering (AREA)
  • Train Traffic Observation, Control, And Security (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
NL6911984A 1968-08-26 1969-08-06 Inrichting voor het "spoor vrij"-melden, in het bijzonder bij tramwegen. NL144534B (nl)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19681780280 DE1780280B2 (de) 1968-08-26 1968-08-26 Gleisfreimeldeeinnchtung, msbesonde re bei Straßenbahnen

Publications (2)

Publication Number Publication Date
NL6911984A true NL6911984A (de) 1970-03-02
NL144534B NL144534B (nl) 1975-01-15

Family

ID=5704316

Family Applications (1)

Application Number Title Priority Date Filing Date
NL6911984A NL144534B (nl) 1968-08-26 1969-08-06 Inrichting voor het "spoor vrij"-melden, in het bijzonder bij tramwegen.

Country Status (4)

Country Link
AT (1) AT289890B (de)
BE (1) BE734278A (de)
DE (1) DE1780280B2 (de)
NL (1) NL144534B (de)

Also Published As

Publication number Publication date
DE1780280B2 (de) 1973-11-15
DE1780280A1 (de) 1972-01-05
BE734278A (de) 1969-11-17
NL144534B (nl) 1975-01-15
AT289890B (de) 1971-05-10

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Legal Events

Date Code Title Description
V1 Lapsed because of non-payment of the annual fee
NL80 Abbreviated name of patent owner mentioned of already nullified patent

Owner name: SIEMENS