JPS62196293U - - Google Patents

Info

Publication number
JPS62196293U
JPS62196293U JP8501786U JP8501786U JPS62196293U JP S62196293 U JPS62196293 U JP S62196293U JP 8501786 U JP8501786 U JP 8501786U JP 8501786 U JP8501786 U JP 8501786U JP S62196293 U JPS62196293 U JP S62196293U
Authority
JP
Japan
Prior art keywords
variable
blind
propulsion method
tip
reduced diameter
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
JP8501786U
Other languages
English (en)
Japanese (ja)
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 JP8501786U priority Critical patent/JPS62196293U/ja
Publication of JPS62196293U publication Critical patent/JPS62196293U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Excavating Of Shafts Or Tunnels (AREA)
JP8501786U 1986-06-03 1986-06-03 Pending JPS62196293U (da)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8501786U JPS62196293U (da) 1986-06-03 1986-06-03

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8501786U JPS62196293U (da) 1986-06-03 1986-06-03

Publications (1)

Publication Number Publication Date
JPS62196293U true JPS62196293U (da) 1987-12-14

Family

ID=30940038

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8501786U Pending JPS62196293U (da) 1986-06-03 1986-06-03

Country Status (1)

Country Link
JP (1) JPS62196293U (da)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5633392B2 (da) * 1975-08-28 1981-08-03

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5633392B2 (da) * 1975-08-28 1981-08-03

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