JPS6453298U - - Google Patents

Info

Publication number
JPS6453298U
JPS6453298U JP14872387U JP14872387U JPS6453298U JP S6453298 U JPS6453298 U JP S6453298U JP 14872387 U JP14872387 U JP 14872387U JP 14872387 U JP14872387 U JP 14872387U JP S6453298 U JPS6453298 U JP S6453298U
Authority
JP
Japan
Prior art keywords
propulsion
tube
tubes
arc
connection structure
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
JP14872387U
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 JP14872387U priority Critical patent/JPS6453298U/ja
Publication of JPS6453298U publication Critical patent/JPS6453298U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Excavating Of Shafts Or Tunnels (AREA)
JP14872387U 1987-09-29 1987-09-29 Pending JPS6453298U (enrdf_load_stackoverflow)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14872387U JPS6453298U (enrdf_load_stackoverflow) 1987-09-29 1987-09-29

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14872387U JPS6453298U (enrdf_load_stackoverflow) 1987-09-29 1987-09-29

Publications (1)

Publication Number Publication Date
JPS6453298U true JPS6453298U (enrdf_load_stackoverflow) 1989-04-03

Family

ID=31420298

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14872387U Pending JPS6453298U (enrdf_load_stackoverflow) 1987-09-29 1987-09-29

Country Status (1)

Country Link
JP (1) JPS6453298U (enrdf_load_stackoverflow)

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