JPS62200785U - - Google Patents

Info

Publication number
JPS62200785U
JPS62200785U JP8640186U JP8640186U JPS62200785U JP S62200785 U JPS62200785 U JP S62200785U JP 8640186 U JP8640186 U JP 8640186U JP 8640186 U JP8640186 U JP 8640186U JP S62200785 U JPS62200785 U JP S62200785U
Authority
JP
Japan
Prior art keywords
bit
sealing material
outer cylinder
utility
model
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
JP8640186U
Other languages
English (en)
Japanese (ja)
Other versions
JPH0434230Y2 (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 JP8640186U priority Critical patent/JPH0434230Y2/ja
Publication of JPS62200785U publication Critical patent/JPS62200785U/ja
Application granted granted Critical
Publication of JPH0434230Y2 publication Critical patent/JPH0434230Y2/ja
Expired legal-status Critical Current

Links

Landscapes

  • Earth Drilling (AREA)
JP8640186U 1986-06-06 1986-06-06 Expired JPH0434230Y2 (enrdf_load_stackoverflow)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8640186U JPH0434230Y2 (enrdf_load_stackoverflow) 1986-06-06 1986-06-06

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8640186U JPH0434230Y2 (enrdf_load_stackoverflow) 1986-06-06 1986-06-06

Publications (2)

Publication Number Publication Date
JPS62200785U true JPS62200785U (enrdf_load_stackoverflow) 1987-12-21
JPH0434230Y2 JPH0434230Y2 (enrdf_load_stackoverflow) 1992-08-14

Family

ID=30942672

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8640186U Expired JPH0434230Y2 (enrdf_load_stackoverflow) 1986-06-06 1986-06-06

Country Status (1)

Country Link
JP (1) JPH0434230Y2 (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
JPH0434230Y2 (enrdf_load_stackoverflow) 1992-08-14

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