JPS644959Y2 - - Google Patents

Info

Publication number
JPS644959Y2
JPS644959Y2 JP1980140600U JP14060080U JPS644959Y2 JP S644959 Y2 JPS644959 Y2 JP S644959Y2 JP 1980140600 U JP1980140600 U JP 1980140600U JP 14060080 U JP14060080 U JP 14060080U JP S644959 Y2 JPS644959 Y2 JP S644959Y2
Authority
JP
Japan
Prior art keywords
space
buried pipe
pipe
hole
propulsion
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
Application number
JP1980140600U
Other languages
English (en)
Japanese (ja)
Other versions
JPS5766091U (cs
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 JP1980140600U priority Critical patent/JPS644959Y2/ja
Publication of JPS5766091U publication Critical patent/JPS5766091U/ja
Application granted granted Critical
Publication of JPS644959Y2 publication Critical patent/JPS644959Y2/ja
Expired legal-status Critical Current

Links

Landscapes

  • Excavating Of Shafts Or Tunnels (AREA)
JP1980140600U 1980-10-03 1980-10-03 Expired JPS644959Y2 (cs)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1980140600U JPS644959Y2 (cs) 1980-10-03 1980-10-03

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1980140600U JPS644959Y2 (cs) 1980-10-03 1980-10-03

Publications (2)

Publication Number Publication Date
JPS5766091U JPS5766091U (cs) 1982-04-20
JPS644959Y2 true JPS644959Y2 (cs) 1989-02-08

Family

ID=29500512

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1980140600U Expired JPS644959Y2 (cs) 1980-10-03 1980-10-03

Country Status (1)

Country Link
JP (1) JPS644959Y2 (cs)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5554586B2 (ja) * 2010-02-19 2014-07-23 学校法人 中央大学 自動掘削推進装置

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5366807U (cs) * 1976-11-08 1978-06-05
JPS5543197Y2 (cs) * 1978-08-08 1980-10-09

Also Published As

Publication number Publication date
JPS5766091U (cs) 1982-04-20

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