JPS6176888U - - Google Patents

Info

Publication number
JPS6176888U
JPS6176888U JP15974384U JP15974384U JPS6176888U JP S6176888 U JPS6176888 U JP S6176888U JP 15974384 U JP15974384 U JP 15974384U JP 15974384 U JP15974384 U JP 15974384U JP S6176888 U JPS6176888 U JP S6176888U
Authority
JP
Japan
Prior art keywords
excavation
underwater
side chamber
pull
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.)
Granted
Application number
JP15974384U
Other languages
English (en)
Japanese (ja)
Other versions
JPH0230549Y2 (US20090163788A1-20090625-C00002.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 JP15974384U priority Critical patent/JPH0230549Y2/ja
Publication of JPS6176888U publication Critical patent/JPS6176888U/ja
Application granted granted Critical
Publication of JPH0230549Y2 publication Critical patent/JPH0230549Y2/ja
Expired legal-status Critical Current

Links

Landscapes

  • Earth Drilling (AREA)
JP15974384U 1984-10-24 1984-10-24 Expired JPH0230549Y2 (US20090163788A1-20090625-C00002.png)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15974384U JPH0230549Y2 (US20090163788A1-20090625-C00002.png) 1984-10-24 1984-10-24

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15974384U JPH0230549Y2 (US20090163788A1-20090625-C00002.png) 1984-10-24 1984-10-24

Publications (2)

Publication Number Publication Date
JPS6176888U true JPS6176888U (US20090163788A1-20090625-C00002.png) 1986-05-23
JPH0230549Y2 JPH0230549Y2 (US20090163788A1-20090625-C00002.png) 1990-08-16

Family

ID=30717690

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15974384U Expired JPH0230549Y2 (US20090163788A1-20090625-C00002.png) 1984-10-24 1984-10-24

Country Status (1)

Country Link
JP (1) JPH0230549Y2 (US20090163788A1-20090625-C00002.png)

Also Published As

Publication number Publication date
JPH0230549Y2 (US20090163788A1-20090625-C00002.png) 1990-08-16

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