JPS5397201A - Method and device for making bulb part in base ground - Google Patents

Method and device for making bulb part in base ground

Info

Publication number
JPS5397201A
JPS5397201A JP1133377A JP1133377A JPS5397201A JP S5397201 A JPS5397201 A JP S5397201A JP 1133377 A JP1133377 A JP 1133377A JP 1133377 A JP1133377 A JP 1133377A JP S5397201 A JPS5397201 A JP S5397201A
Authority
JP
Japan
Prior art keywords
bulb part
base ground
making bulb
making
ground
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
JP1133377A
Other languages
Japanese (ja)
Inventor
Teruo Koi
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 JP1133377A priority Critical patent/JPS5397201A/en
Publication of JPS5397201A publication Critical patent/JPS5397201A/en
Pending legal-status Critical Current

Links

Landscapes

  • Earth Drilling (AREA)
  • Piles And Underground Anchors (AREA)
JP1133377A 1977-02-04 1977-02-04 Method and device for making bulb part in base ground Pending JPS5397201A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1133377A JPS5397201A (en) 1977-02-04 1977-02-04 Method and device for making bulb part in base ground

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1133377A JPS5397201A (en) 1977-02-04 1977-02-04 Method and device for making bulb part in base ground

Publications (1)

Publication Number Publication Date
JPS5397201A true JPS5397201A (en) 1978-08-25

Family

ID=11775095

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1133377A Pending JPS5397201A (en) 1977-02-04 1977-02-04 Method and device for making bulb part in base ground

Country Status (1)

Country Link
JP (1) JPS5397201A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6268922A (en) * 1985-09-20 1987-03-30 Mitani Sekisan Kk Excavating method for hole and enlarging device for hole diameter
JP2016196082A (en) * 2013-02-19 2016-11-24 Ｆｓテクニカル株式会社 Drill bit for diameter expansion

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3472553A (en) * 1967-05-03 1969-10-14 Bruno H Miller Method of and apparatus for extracting bitumen

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3472553A (en) * 1967-05-03 1969-10-14 Bruno H Miller Method of and apparatus for extracting bitumen

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6268922A (en) * 1985-09-20 1987-03-30 Mitani Sekisan Kk Excavating method for hole and enlarging device for hole diameter
JP2016196082A (en) * 2013-02-19 2016-11-24 Ｆｓテクニカル株式会社 Drill bit for diameter expansion

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