JPH033671Y2 - - Google Patents

Info

Publication number
JPH033671Y2
JPH033671Y2 JP15977284U JP15977284U JPH033671Y2 JP H033671 Y2 JPH033671 Y2 JP H033671Y2 JP 15977284 U JP15977284 U JP 15977284U JP 15977284 U JP15977284 U JP 15977284U JP H033671 Y2 JPH033671 Y2 JP H033671Y2
Authority
JP
Japan
Prior art keywords
small
propulsion
diameter unit
self
propelled
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
JP15977284U
Other languages
English (en)
Japanese (ja)
Other versions
JPS6176894U (en]
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 JP15977284U priority Critical patent/JPH033671Y2/ja
Publication of JPS6176894U publication Critical patent/JPS6176894U/ja
Application granted granted Critical
Publication of JPH033671Y2 publication Critical patent/JPH033671Y2/ja
Expired legal-status Critical Current

Links

Landscapes

  • Excavating Of Shafts Or Tunnels (AREA)
JP15977284U 1984-10-24 1984-10-24 Expired JPH033671Y2 (en])

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15977284U JPH033671Y2 (en]) 1984-10-24 1984-10-24

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15977284U JPH033671Y2 (en]) 1984-10-24 1984-10-24

Publications (2)

Publication Number Publication Date
JPS6176894U JPS6176894U (en]) 1986-05-23
JPH033671Y2 true JPH033671Y2 (en]) 1991-01-30

Family

ID=30717719

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15977284U Expired JPH033671Y2 (en]) 1984-10-24 1984-10-24

Country Status (1)

Country Link
JP (1) JPH033671Y2 (en])

Also Published As

Publication number Publication date
JPS6176894U (en]) 1986-05-23

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