JPS5210801A - Method of doubleepipe boring - Google Patents

Method of doubleepipe boring

Info

Publication number
JPS5210801A
JPS5210801A JP8777775A JP8777775A JPS5210801A JP S5210801 A JPS5210801 A JP S5210801A JP 8777775 A JP8777775 A JP 8777775A JP 8777775 A JP8777775 A JP 8777775A JP S5210801 A JPS5210801 A JP S5210801A
Authority
JP
Japan
Prior art keywords
doubleepipe
boring
doubleepipe boring
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
JP8777775A
Other languages
Japanese (ja)
Inventor
Masahiko Takeishi
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP8777775A priority Critical patent/JPS5210801A/en
Publication of JPS5210801A publication Critical patent/JPS5210801A/en
Pending legal-status Critical Current

Links

JP8777775A 1975-07-15 1975-07-15 Method of doubleepipe boring Pending JPS5210801A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8777775A JPS5210801A (en) 1975-07-15 1975-07-15 Method of doubleepipe boring

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8777775A JPS5210801A (en) 1975-07-15 1975-07-15 Method of doubleepipe boring

Publications (1)

Publication Number Publication Date
JPS5210801A true JPS5210801A (en) 1977-01-27

Family

ID=13924400

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8777775A Pending JPS5210801A (en) 1975-07-15 1975-07-15 Method of doubleepipe boring

Country Status (1)

Country Link
JP (1) JPS5210801A (en)

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