JPH0526489Y2 - - Google Patents

Info

Publication number
JPH0526489Y2
JPH0526489Y2 JP2481091U JP2481091U JPH0526489Y2 JP H0526489 Y2 JPH0526489 Y2 JP H0526489Y2 JP 2481091 U JP2481091 U JP 2481091U JP 2481091 U JP2481091 U JP 2481091U JP H0526489 Y2 JPH0526489 Y2 JP H0526489Y2
Authority
JP
Japan
Prior art keywords
shield machine
planned course
light
wave
elastic
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.)
Expired - Lifetime
Application number
JP2481091U
Other languages
English (en)
Japanese (ja)
Other versions
JPH0488807U (enExample
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
Priority to JP2481091U priority Critical patent/JPH0526489Y2/ja
Publication of JPH0488807U publication Critical patent/JPH0488807U/ja
Application granted granted Critical
Publication of JPH0526489Y2 publication Critical patent/JPH0526489Y2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Excavating Of Shafts Or Tunnels (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
JP2481091U 1991-03-20 1991-03-20 Expired - Lifetime JPH0526489Y2 (enExample)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2481091U JPH0526489Y2 (enExample) 1991-03-20 1991-03-20

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2481091U JPH0526489Y2 (enExample) 1991-03-20 1991-03-20

Publications (2)

Publication Number Publication Date
JPH0488807U JPH0488807U (enExample) 1992-08-03
JPH0526489Y2 true JPH0526489Y2 (enExample) 1993-07-05

Family

ID=31759898

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2481091U Expired - Lifetime JPH0526489Y2 (enExample) 1991-03-20 1991-03-20

Country Status (1)

Country Link
JP (1) JPH0526489Y2 (enExample)

Also Published As

Publication number Publication date
JPH0488807U (enExample) 1992-08-03

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Legal Events

Date Code Title Description
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 19940607