JPS6294186U - - Google Patents

Info

Publication number
JPS6294186U
JPS6294186U JP18541485U JP18541485U JPS6294186U JP S6294186 U JPS6294186 U JP S6294186U JP 18541485 U JP18541485 U JP 18541485U JP 18541485 U JP18541485 U JP 18541485U JP S6294186 U JPS6294186 U JP S6294186U
Authority
JP
Japan
Prior art keywords
cutter
ring body
annular groove
notch
roller bit
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
JP18541485U
Other languages
English (en)
Japanese (ja)
Other versions
JPH0242791Y2 (enrdf_load_stackoverflow
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 JP18541485U priority Critical patent/JPH0242791Y2/ja
Publication of JPS6294186U publication Critical patent/JPS6294186U/ja
Application granted granted Critical
Publication of JPH0242791Y2 publication Critical patent/JPH0242791Y2/ja
Expired legal-status Critical Current

Links

Landscapes

  • Excavating Of Shafts Or Tunnels (AREA)
  • Earth Drilling (AREA)
JP18541485U 1985-11-29 1985-11-29 Expired JPH0242791Y2 (enrdf_load_stackoverflow)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18541485U JPH0242791Y2 (enrdf_load_stackoverflow) 1985-11-29 1985-11-29

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18541485U JPH0242791Y2 (enrdf_load_stackoverflow) 1985-11-29 1985-11-29

Publications (2)

Publication Number Publication Date
JPS6294186U true JPS6294186U (enrdf_load_stackoverflow) 1987-06-16
JPH0242791Y2 JPH0242791Y2 (enrdf_load_stackoverflow) 1990-11-14

Family

ID=31134018

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18541485U Expired JPH0242791Y2 (enrdf_load_stackoverflow) 1985-11-29 1985-11-29

Country Status (1)

Country Link
JP (1) JPH0242791Y2 (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
JPH0242791Y2 (enrdf_load_stackoverflow) 1990-11-14

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