JPS63105806U - - Google Patents

Info

Publication number
JPS63105806U
JPS63105806U JP20298186U JP20298186U JPS63105806U JP S63105806 U JPS63105806 U JP S63105806U JP 20298186 U JP20298186 U JP 20298186U JP 20298186 U JP20298186 U JP 20298186U JP S63105806 U JPS63105806 U JP S63105806U
Authority
JP
Japan
Prior art keywords
target
laser beam
pipe
linearity
signal
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
JP20298186U
Other languages
English (en)
Japanese (ja)
Other versions
JPH0520965Y2 (enrdf_load_stackoverflow
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 JP20298186U priority Critical patent/JPH0520965Y2/ja
Publication of JPS63105806U publication Critical patent/JPS63105806U/ja
Application granted granted Critical
Publication of JPH0520965Y2 publication Critical patent/JPH0520965Y2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Sewage (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Pipeline Systems (AREA)
JP20298186U 1986-12-26 1986-12-26 Expired - Lifetime JPH0520965Y2 (enrdf_load_stackoverflow)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP20298186U JPH0520965Y2 (enrdf_load_stackoverflow) 1986-12-26 1986-12-26

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP20298186U JPH0520965Y2 (enrdf_load_stackoverflow) 1986-12-26 1986-12-26

Publications (2)

Publication Number Publication Date
JPS63105806U true JPS63105806U (enrdf_load_stackoverflow) 1988-07-08
JPH0520965Y2 JPH0520965Y2 (enrdf_load_stackoverflow) 1993-05-31

Family

ID=31167876

Family Applications (1)

Application Number Title Priority Date Filing Date
JP20298186U Expired - Lifetime JPH0520965Y2 (enrdf_load_stackoverflow) 1986-12-26 1986-12-26

Country Status (1)

Country Link
JP (1) JPH0520965Y2 (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004300788A (ja) * 2003-03-31 2004-10-28 Natl Inst For Land & Infrastructure Management Mlit 管路の勾配測定方法及び装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004300788A (ja) * 2003-03-31 2004-10-28 Natl Inst For Land & Infrastructure Management Mlit 管路の勾配測定方法及び装置

Also Published As

Publication number Publication date
JPH0520965Y2 (enrdf_load_stackoverflow) 1993-05-31

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