JPS5980595U - 推進管接続用補助具 - Google Patents

推進管接続用補助具

Info

Publication number
JPS5980595U
JPS5980595U JP17589782U JP17589782U JPS5980595U JP S5980595 U JPS5980595 U JP S5980595U JP 17589782 U JP17589782 U JP 17589782U JP 17589782 U JP17589782 U JP 17589782U JP S5980595 U JPS5980595 U JP S5980595U
Authority
JP
Japan
Prior art keywords
propulsion tube
propulsion
tube connection
tip
attached
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
JP17589782U
Other languages
English (en)
Japanese (ja)
Other versions
JPS6133116Y2 (enrdf_load_stackoverflow
Inventor
石塚　良治
霜田　武利
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone Corp
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 by Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP17589782U priority Critical patent/JPS5980595U/ja
Publication of JPS5980595U publication Critical patent/JPS5980595U/ja
Application granted granted Critical
Publication of JPS6133116Y2 publication Critical patent/JPS6133116Y2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Excavating Of Shafts Or Tunnels (AREA)
JP17589782U 1982-11-21 1982-11-21 推進管接続用補助具 Granted JPS5980595U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17589782U JPS5980595U (ja) 1982-11-21 1982-11-21 推進管接続用補助具

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17589782U JPS5980595U (ja) 1982-11-21 1982-11-21 推進管接続用補助具

Publications (2)

Publication Number Publication Date
JPS5980595U true JPS5980595U (ja) 1984-05-31
JPS6133116Y2 JPS6133116Y2 (enrdf_load_stackoverflow) 1986-09-26

Family

ID=30382559

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17589782U Granted JPS5980595U (ja) 1982-11-21 1982-11-21 推進管接続用補助具

Country Status (1)

Country Link
JP (1) JPS5980595U (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
JPS6133116Y2 (enrdf_load_stackoverflow) 1986-09-26

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