JPS6439997U - - Google Patents

Info

Publication number
JPS6439997U
JPS6439997U JP13458187U JP13458187U JPS6439997U JP S6439997 U JPS6439997 U JP S6439997U JP 13458187 U JP13458187 U JP 13458187U JP 13458187 U JP13458187 U JP 13458187U JP S6439997 U JPS6439997 U JP S6439997U
Authority
JP
Japan
Prior art keywords
pipe
circumferential surface
double
mud
tube
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
JP13458187U
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 JP13458187U priority Critical patent/JPS6439997U/ja
Publication of JPS6439997U publication Critical patent/JPS6439997U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Excavating Of Shafts Or Tunnels (AREA)
  • Joints Allowing Movement (AREA)
JP13458187U 1987-09-04 1987-09-04 Pending JPS6439997U (enrdf_load_stackoverflow)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13458187U JPS6439997U (enrdf_load_stackoverflow) 1987-09-04 1987-09-04

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13458187U JPS6439997U (enrdf_load_stackoverflow) 1987-09-04 1987-09-04

Publications (1)

Publication Number Publication Date
JPS6439997U true JPS6439997U (enrdf_load_stackoverflow) 1989-03-09

Family

ID=31393469

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13458187U Pending JPS6439997U (enrdf_load_stackoverflow) 1987-09-04 1987-09-04

Country Status (1)

Country Link
JP (1) JPS6439997U (enrdf_load_stackoverflow)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5234412B2 (enrdf_load_stackoverflow) * 1975-09-18 1977-09-03

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5234412B2 (enrdf_load_stackoverflow) * 1975-09-18 1977-09-03

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