JPS5771090A - Proximity warning device - Google Patents

Proximity warning device

Info

Publication number
JPS5771090A
JPS5771090A JP55146783A JP14678380A JPS5771090A JP S5771090 A JPS5771090 A JP S5771090A JP 55146783 A JP55146783 A JP 55146783A JP 14678380 A JP14678380 A JP 14678380A JP S5771090 A JPS5771090 A JP S5771090A
Authority
JP
Japan
Prior art keywords
warning device
proximity warning
proximity
warning
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.)
Granted
Application number
JP55146783A
Other languages
Japanese (ja)
Other versions
JPS598872B2 (en
Inventor
Shiyouzou Fukuma
Yoshito Noda
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.)
Nittetsu Mining Co Ltd
Original Assignee
Nittetsu Mining Co Ltd
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 Nittetsu Mining Co Ltd filed Critical Nittetsu Mining Co Ltd
Priority to JP55146783A priority Critical patent/JPS598872B2/en
Publication of JPS5771090A publication Critical patent/JPS5771090A/en
Publication of JPS598872B2 publication Critical patent/JPS598872B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Geophysics And Detection Of Objects (AREA)
  • Burglar Alarm Systems (AREA)
  • Emergency Alarm Devices (AREA)
JP55146783A 1980-10-22 1980-10-22 proximity warning device Expired JPS598872B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55146783A JPS598872B2 (en) 1980-10-22 1980-10-22 proximity warning device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55146783A JPS598872B2 (en) 1980-10-22 1980-10-22 proximity warning device

Publications (2)

Publication Number Publication Date
JPS5771090A true JPS5771090A (en) 1982-05-01
JPS598872B2 JPS598872B2 (en) 1984-02-28

Family

ID=15415428

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55146783A Expired JPS598872B2 (en) 1980-10-22 1980-10-22 proximity warning device

Country Status (1)

Country Link
JP (1) JPS598872B2 (en)

Also Published As

Publication number Publication date
JPS598872B2 (en) 1984-02-28

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