JPH0362190U - - Google Patents

Info

Publication number
JPH0362190U
JPH0362190U JP12422489U JP12422489U JPH0362190U JP H0362190 U JPH0362190 U JP H0362190U JP 12422489 U JP12422489 U JP 12422489U JP 12422489 U JP12422489 U JP 12422489U JP H0362190 U JPH0362190 U JP H0362190U
Authority
JP
Japan
Prior art keywords
bit
drilling
welded
recess
drilling tube
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
JP12422489U
Other languages
English (en)
Japanese (ja)
Other versions
JPH0726477Y2 (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 JP1989124224U priority Critical patent/JPH0726477Y2/ja
Publication of JPH0362190U publication Critical patent/JPH0362190U/ja
Application granted granted Critical
Publication of JPH0726477Y2 publication Critical patent/JPH0726477Y2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Earth Drilling (AREA)
JP1989124224U 1989-10-24 1989-10-24 削孔用ビット Expired - Lifetime JPH0726477Y2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1989124224U JPH0726477Y2 (ja) 1989-10-24 1989-10-24 削孔用ビット

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1989124224U JPH0726477Y2 (ja) 1989-10-24 1989-10-24 削孔用ビット

Publications (2)

Publication Number Publication Date
JPH0362190U true JPH0362190U (ko) 1991-06-18
JPH0726477Y2 JPH0726477Y2 (ja) 1995-06-14

Family

ID=31672157

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1989124224U Expired - Lifetime JPH0726477Y2 (ja) 1989-10-24 1989-10-24 削孔用ビット

Country Status (1)

Country Link
JP (1) JPH0726477Y2 (ko)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007321325A (ja) * 2006-05-31 2007-12-13 Mieko Saito ポケット付き首巻き

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4485705B2 (ja) * 2001-04-20 2010-06-23 株式会社タンガロイ 掘削用ビット及びケーシングカッタ
JP4485706B2 (ja) * 2001-04-24 2010-06-23 株式会社タンガロイ 両方向掘削ビット及びケーシングカッタ
JP4514359B2 (ja) * 2001-04-26 2010-07-28 株式会社タンガロイ 掘削用ビット

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62176286U (ko) * 1986-04-25 1987-11-09

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62176286U (ko) * 1986-04-25 1987-11-09

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007321325A (ja) * 2006-05-31 2007-12-13 Mieko Saito ポケット付き首巻き

Also Published As

Publication number Publication date
JPH0726477Y2 (ja) 1995-06-14

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