JPH03108054U - - Google Patents

Info

Publication number
JPH03108054U
JPH03108054U JP1467290U JP1467290U JPH03108054U JP H03108054 U JPH03108054 U JP H03108054U JP 1467290 U JP1467290 U JP 1467290U JP 1467290 U JP1467290 U JP 1467290U JP H03108054 U JPH03108054 U JP H03108054U
Authority
JP
Japan
Prior art keywords
sand
rock debris
earth
hopper
underground space
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
JP1467290U
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 JP1467290U priority Critical patent/JPH03108054U/ja
Publication of JPH03108054U publication Critical patent/JPH03108054U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Excavating Of Shafts Or Tunnels (AREA)
JP1467290U 1990-02-19 1990-02-19 Pending JPH03108054U (enrdf_load_stackoverflow)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1467290U JPH03108054U (enrdf_load_stackoverflow) 1990-02-19 1990-02-19

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1467290U JPH03108054U (enrdf_load_stackoverflow) 1990-02-19 1990-02-19

Publications (1)

Publication Number Publication Date
JPH03108054U true JPH03108054U (enrdf_load_stackoverflow) 1991-11-07

Family

ID=31518020

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1467290U Pending JPH03108054U (enrdf_load_stackoverflow) 1990-02-19 1990-02-19

Country Status (1)

Country Link
JP (1) JPH03108054U (enrdf_load_stackoverflow)

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