JPS61188690U - - Google Patents

Info

Publication number
JPS61188690U
JPS61188690U JP7112785U JP7112785U JPS61188690U JP S61188690 U JPS61188690 U JP S61188690U JP 7112785 U JP7112785 U JP 7112785U JP 7112785 U JP7112785 U JP 7112785U JP S61188690 U JPS61188690 U JP S61188690U
Authority
JP
Japan
Prior art keywords
bit
cutting edge
attached above
letter
registration request
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
JP7112785U
Other languages
English (en)
Japanese (ja)
Other versions
JPH0230550Y2 (US06826419-20041130-M00005.png
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 JP7112785U priority Critical patent/JPH0230550Y2/ja
Publication of JPS61188690U publication Critical patent/JPS61188690U/ja
Application granted granted Critical
Publication of JPH0230550Y2 publication Critical patent/JPH0230550Y2/ja
Expired legal-status Critical Current

Links

Landscapes

  • Earth Drilling (AREA)
JP7112785U 1985-05-14 1985-05-14 Expired JPH0230550Y2 (US06826419-20041130-M00005.png)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7112785U JPH0230550Y2 (US06826419-20041130-M00005.png) 1985-05-14 1985-05-14

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7112785U JPH0230550Y2 (US06826419-20041130-M00005.png) 1985-05-14 1985-05-14

Publications (2)

Publication Number Publication Date
JPS61188690U true JPS61188690U (US06826419-20041130-M00005.png) 1986-11-25
JPH0230550Y2 JPH0230550Y2 (US06826419-20041130-M00005.png) 1990-08-16

Family

ID=30608340

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7112785U Expired JPH0230550Y2 (US06826419-20041130-M00005.png) 1985-05-14 1985-05-14

Country Status (1)

Country Link
JP (1) JPH0230550Y2 (US06826419-20041130-M00005.png)

Also Published As

Publication number Publication date
JPH0230550Y2 (US06826419-20041130-M00005.png) 1990-08-16

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