JPH0721675Y2 - リングビット - Google Patents

リングビット

Info

Publication number
JPH0721675Y2
JPH0721675Y2 JP14896589U JP14896589U JPH0721675Y2 JP H0721675 Y2 JPH0721675 Y2 JP H0721675Y2 JP 14896589 U JP14896589 U JP 14896589U JP 14896589 U JP14896589 U JP 14896589U JP H0721675 Y2 JPH0721675 Y2 JP H0721675Y2
Authority
JP
Japan
Prior art keywords
tip
drilling
bit
ring bit
ring
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.)
Expired - Fee Related
Application number
JP14896589U
Other languages
English (en)
Japanese (ja)
Other versions
JPH0386188U (en]
Inventor
勇喜男 田中
孝 西山
Original Assignee
東芝タンガロイ株式会社
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 東芝タンガロイ株式会社 filed Critical 東芝タンガロイ株式会社
Priority to JP14896589U priority Critical patent/JPH0721675Y2/ja
Publication of JPH0386188U publication Critical patent/JPH0386188U/ja
Application granted granted Critical
Publication of JPH0721675Y2 publication Critical patent/JPH0721675Y2/ja
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Earth Drilling (AREA)
JP14896589U 1989-12-25 1989-12-25 リングビット Expired - Fee Related JPH0721675Y2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14896589U JPH0721675Y2 (ja) 1989-12-25 1989-12-25 リングビット

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14896589U JPH0721675Y2 (ja) 1989-12-25 1989-12-25 リングビット

Publications (2)

Publication Number Publication Date
JPH0386188U JPH0386188U (en]) 1991-08-30
JPH0721675Y2 true JPH0721675Y2 (ja) 1995-05-17

Family

ID=31695399

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14896589U Expired - Fee Related JPH0721675Y2 (ja) 1989-12-25 1989-12-25 リングビット

Country Status (1)

Country Link
JP (1) JPH0721675Y2 (en])

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007063909A (ja) * 2005-09-01 2007-03-15 Techno Earth Corp 地質試料採取装置および、これを用いた廃棄物の採取方法
JP6268192B2 (ja) 2013-12-18 2018-01-24 株式会社シマノ グローブ

Also Published As

Publication number Publication date
JPH0386188U (en]) 1991-08-30

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Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees