JPS554210A - Train access alarm - Google Patents

Train access alarm

Info

Publication number
JPS554210A
JPS554210A JP7552278A JP7552278A JPS554210A JP S554210 A JPS554210 A JP S554210A JP 7552278 A JP7552278 A JP 7552278A JP 7552278 A JP7552278 A JP 7552278A JP S554210 A JPS554210 A JP S554210A
Authority
JP
Japan
Prior art keywords
train access
access alarm
alarm
train
access
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.)
Pending
Application number
JP7552278A
Other languages
Japanese (ja)
Inventor
Akio Saeki
Iwao Matsumoto
Moriharu Matsuki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TOUHOKU DENSHI SANGYO KK
Original Assignee
TOUHOKU DENSHI SANGYO KK
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 by TOUHOKU DENSHI SANGYO KK filed Critical TOUHOKU DENSHI SANGYO KK
Priority to JP7552278A priority Critical patent/JPS554210A/en
Publication of JPS554210A publication Critical patent/JPS554210A/en
Pending legal-status Critical Current

Links

Landscapes

  • Train Traffic Observation, Control, And Security (AREA)
JP7552278A 1978-06-23 1978-06-23 Train access alarm Pending JPS554210A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7552278A JPS554210A (en) 1978-06-23 1978-06-23 Train access alarm

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7552278A JPS554210A (en) 1978-06-23 1978-06-23 Train access alarm

Publications (1)

Publication Number Publication Date
JPS554210A true JPS554210A (en) 1980-01-12

Family

ID=13578639

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7552278A Pending JPS554210A (en) 1978-06-23 1978-06-23 Train access alarm

Country Status (1)

Country Link
JP (1) JPS554210A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0438597A (en) * 1990-06-04 1992-02-07 East Japan Railway Co Radio communicating system
JPH0449565U (en) * 1990-09-04 1992-04-27

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0438597A (en) * 1990-06-04 1992-02-07 East Japan Railway Co Radio communicating system
JP2875593B2 (en) * 1990-06-04 1999-03-31 東日本旅客鉄道株式会社 Wireless communication system
JPH0449565U (en) * 1990-09-04 1992-04-27

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