JPS5781586A - Hole drilling method - Google Patents

Hole drilling method

Info

Publication number
JPS5781586A
JPS5781586A JP15759280A JP15759280A JPS5781586A JP S5781586 A JPS5781586 A JP S5781586A JP 15759280 A JP15759280 A JP 15759280A JP 15759280 A JP15759280 A JP 15759280A JP S5781586 A JPS5781586 A JP S5781586A
Authority
JP
Japan
Prior art keywords
hole drilling
drilling method
hole
drilling
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
JP15759280A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6358998B2 (enExample
Inventor
Motoyuki Takasu
Isaku Suwabe
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.)
Maruzen Kogyo Co Ltd
Tokyu Construction Co Ltd
Original Assignee
Maruzen Kogyo Co Ltd
Tokyu Construction Co Ltd
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 Maruzen Kogyo Co Ltd, Tokyu Construction Co Ltd filed Critical Maruzen Kogyo Co Ltd
Priority to JP15759280A priority Critical patent/JPS5781586A/ja
Publication of JPS5781586A publication Critical patent/JPS5781586A/ja
Publication of JPS6358998B2 publication Critical patent/JPS6358998B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Drilling And Exploitation, And Mining Machines And Methods (AREA)
  • Earth Drilling (AREA)
JP15759280A 1980-11-11 1980-11-11 Hole drilling method Granted JPS5781586A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15759280A JPS5781586A (en) 1980-11-11 1980-11-11 Hole drilling method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15759280A JPS5781586A (en) 1980-11-11 1980-11-11 Hole drilling method

Publications (2)

Publication Number Publication Date
JPS5781586A true JPS5781586A (en) 1982-05-21
JPS6358998B2 JPS6358998B2 (enExample) 1988-11-17

Family

ID=15653073

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15759280A Granted JPS5781586A (en) 1980-11-11 1980-11-11 Hole drilling method

Country Status (1)

Country Link
JP (1) JPS5781586A (enExample)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5139927A (enExample) * 1974-08-01 1976-04-03 Eru Puruuto Junia Robaato

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5139927A (enExample) * 1974-08-01 1976-04-03 Eru Puruuto Junia Robaato

Also Published As

Publication number Publication date
JPS6358998B2 (enExample) 1988-11-17

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