JPS5411801A - Reverse sheath technique for drilling - Google Patents

Reverse sheath technique for drilling

Info

Publication number
JPS5411801A
JPS5411801A JP7762877A JP7762877A JPS5411801A JP S5411801 A JPS5411801 A JP S5411801A JP 7762877 A JP7762877 A JP 7762877A JP 7762877 A JP7762877 A JP 7762877A JP S5411801 A JPS5411801 A JP S5411801A
Authority
JP
Japan
Prior art keywords
drilling
reverse sheath
sheath technique
technique
reverse
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
JP7762877A
Other languages
Japanese (ja)
Inventor
Isamu Osanai
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.)
OSANAI SUIGEN KOUGIYOU KK
Original Assignee
OSANAI SUIGEN KOUGIYOU KK
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 OSANAI SUIGEN KOUGIYOU KK filed Critical OSANAI SUIGEN KOUGIYOU KK
Priority to JP7762877A priority Critical patent/JPS5411801A/en
Publication of JPS5411801A publication Critical patent/JPS5411801A/en
Pending legal-status Critical Current

Links

JP7762877A 1977-06-29 1977-06-29 Reverse sheath technique for drilling Pending JPS5411801A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7762877A JPS5411801A (en) 1977-06-29 1977-06-29 Reverse sheath technique for drilling

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7762877A JPS5411801A (en) 1977-06-29 1977-06-29 Reverse sheath technique for drilling

Publications (1)

Publication Number Publication Date
JPS5411801A true JPS5411801A (en) 1979-01-29

Family

ID=13639162

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7762877A Pending JPS5411801A (en) 1977-06-29 1977-06-29 Reverse sheath technique for drilling

Country Status (1)

Country Link
JP (1) JPS5411801A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57169191A (en) * 1981-04-10 1982-10-18 Taisei Kiso Sekkei Kk Self-boring method and apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57169191A (en) * 1981-04-10 1982-10-18 Taisei Kiso Sekkei Kk Self-boring method and apparatus

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