JPH03122190U - - Google Patents

Info

Publication number
JPH03122190U
JPH03122190U JP3092690U JP3092690U JPH03122190U JP H03122190 U JPH03122190 U JP H03122190U JP 3092690 U JP3092690 U JP 3092690U JP 3092690 U JP3092690 U JP 3092690U JP H03122190 U JPH03122190 U JP H03122190U
Authority
JP
Japan
Prior art keywords
bit
face
bullet
work
tips
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
JP3092690U
Other languages
English (en)
Japanese (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 JP3092690U priority Critical patent/JPH03122190U/ja
Publication of JPH03122190U publication Critical patent/JPH03122190U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Earth Drilling (AREA)
JP3092690U 1990-03-28 1990-03-28 Pending JPH03122190U (US06623731-20030923-C00012.png)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3092690U JPH03122190U (US06623731-20030923-C00012.png) 1990-03-28 1990-03-28

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3092690U JPH03122190U (US06623731-20030923-C00012.png) 1990-03-28 1990-03-28

Publications (1)

Publication Number Publication Date
JPH03122190U true JPH03122190U (US06623731-20030923-C00012.png) 1991-12-13

Family

ID=31533648

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3092690U Pending JPH03122190U (US06623731-20030923-C00012.png) 1990-03-28 1990-03-28

Country Status (1)

Country Link
JP (1) JPH03122190U (US06623731-20030923-C00012.png)

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