JPS63108488U - - Google Patents

Info

Publication number
JPS63108488U
JPS63108488U JP19903486U JP19903486U JPS63108488U JP S63108488 U JPS63108488 U JP S63108488U JP 19903486 U JP19903486 U JP 19903486U JP 19903486 U JP19903486 U JP 19903486U JP S63108488 U JPS63108488 U JP S63108488U
Authority
JP
Japan
Prior art keywords
tip
curved
drill
universal joint
driven drill
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
JP19903486U
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 JP19903486U priority Critical patent/JPS63108488U/ja
Publication of JPS63108488U publication Critical patent/JPS63108488U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Earth Drilling (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)
JP19903486U 1986-12-27 1986-12-27 Pending JPS63108488U (enExample)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19903486U JPS63108488U (enExample) 1986-12-27 1986-12-27

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19903486U JPS63108488U (enExample) 1986-12-27 1986-12-27

Publications (1)

Publication Number Publication Date
JPS63108488U true JPS63108488U (enExample) 1988-07-13

Family

ID=31160285

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19903486U Pending JPS63108488U (enExample) 1986-12-27 1986-12-27

Country Status (1)

Country Link
JP (1) JPS63108488U (enExample)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS517928A (enExample) * 1974-07-09 1976-01-22 Canon Kk
JPS5915190A (ja) * 1982-07-19 1984-01-26 東京瓦斯株式会社 ２重管地中推進敷設装置
JPS5915191A (ja) * 1982-07-19 1984-01-26 東京瓦斯株式会社 ２重管による管の地中敷設方法

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS517928A (enExample) * 1974-07-09 1976-01-22 Canon Kk
JPS5915190A (ja) * 1982-07-19 1984-01-26 東京瓦斯株式会社 ２重管地中推進敷設装置
JPS5915191A (ja) * 1982-07-19 1984-01-26 東京瓦斯株式会社 ２重管による管の地中敷設方法

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