JPS6269744U - - Google Patents

Info

Publication number
JPS6269744U
JPS6269744U JP16128785U JP16128785U JPS6269744U JP S6269744 U JPS6269744 U JP S6269744U JP 16128785 U JP16128785 U JP 16128785U JP 16128785 U JP16128785 U JP 16128785U JP S6269744 U JPS6269744 U JP S6269744U
Authority
JP
Japan
Prior art keywords
tunnel
side wall
maintenance area
wall
ceiling
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
JP16128785U
Other languages
English (en)
Japanese (ja)
Other versions
JPH0230660Y2 (US07714131-20100511-C00038.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 JP16128785U priority Critical patent/JPH0230660Y2/ja
Publication of JPS6269744U publication Critical patent/JPS6269744U/ja
Application granted granted Critical
Publication of JPH0230660Y2 publication Critical patent/JPH0230660Y2/ja
Expired legal-status Critical Current

Links

Landscapes

  • Ventilation (AREA)
JP16128785U 1985-10-23 1985-10-23 Expired JPH0230660Y2 (US07714131-20100511-C00038.png)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16128785U JPH0230660Y2 (US07714131-20100511-C00038.png) 1985-10-23 1985-10-23

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16128785U JPH0230660Y2 (US07714131-20100511-C00038.png) 1985-10-23 1985-10-23

Publications (2)

Publication Number Publication Date
JPS6269744U true JPS6269744U (US07714131-20100511-C00038.png) 1987-05-01
JPH0230660Y2 JPH0230660Y2 (US07714131-20100511-C00038.png) 1990-08-17

Family

ID=31087461

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16128785U Expired JPH0230660Y2 (US07714131-20100511-C00038.png) 1985-10-23 1985-10-23

Country Status (1)

Country Link
JP (1) JPH0230660Y2 (US07714131-20100511-C00038.png)

Also Published As

Publication number Publication date
JPH0230660Y2 (US07714131-20100511-C00038.png) 1990-08-17

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