JPS6223913Y2 - - Google Patents

Info

Publication number
JPS6223913Y2
JPS6223913Y2 JP6588381U JP6588381U JPS6223913Y2 JP S6223913 Y2 JPS6223913 Y2 JP S6223913Y2 JP 6588381 U JP6588381 U JP 6588381U JP 6588381 U JP6588381 U JP 6588381U JP S6223913 Y2 JPS6223913 Y2 JP S6223913Y2
Authority
JP
Japan
Prior art keywords
pipe
head
cutter
casing
head unit
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
JP6588381U
Other languages
English (en)
Japanese (ja)
Other versions
JPS57178892U (US20020051482A1-20020502-M00012.png
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 JP6588381U priority Critical patent/JPS6223913Y2/ja
Publication of JPS57178892U publication Critical patent/JPS57178892U/ja
Application granted granted Critical
Publication of JPS6223913Y2 publication Critical patent/JPS6223913Y2/ja
Expired legal-status Critical Current

Links

Landscapes

  • Excavating Of Shafts Or Tunnels (AREA)
JP6588381U 1981-05-07 1981-05-07 Expired JPS6223913Y2 (US20020051482A1-20020502-M00012.png)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6588381U JPS6223913Y2 (US20020051482A1-20020502-M00012.png) 1981-05-07 1981-05-07

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6588381U JPS6223913Y2 (US20020051482A1-20020502-M00012.png) 1981-05-07 1981-05-07

Publications (2)

Publication Number Publication Date
JPS57178892U JPS57178892U (US20020051482A1-20020502-M00012.png) 1982-11-12
JPS6223913Y2 true JPS6223913Y2 (US20020051482A1-20020502-M00012.png) 1987-06-18

Family

ID=29861911

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6588381U Expired JPS6223913Y2 (US20020051482A1-20020502-M00012.png) 1981-05-07 1981-05-07

Country Status (1)

Country Link
JP (1) JPS6223913Y2 (US20020051482A1-20020502-M00012.png)

Also Published As

Publication number Publication date
JPS57178892U (US20020051482A1-20020502-M00012.png) 1982-11-12

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