JPH0449272Y2 - - Google Patents

Info

Publication number
JPH0449272Y2
JPH0449272Y2 JP16668487U JP16668487U JPH0449272Y2 JP H0449272 Y2 JPH0449272 Y2 JP H0449272Y2 JP 16668487 U JP16668487 U JP 16668487U JP 16668487 U JP16668487 U JP 16668487U JP H0449272 Y2 JPH0449272 Y2 JP H0449272Y2
Authority
JP
Japan
Prior art keywords
cylinder
guide plate
groove
pipe
tip
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
Application number
JP16668487U
Other languages
English (en)
Japanese (ja)
Other versions
JPH0169892U (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 JP16668487U priority Critical patent/JPH0449272Y2/ja
Publication of JPH0169892U publication Critical patent/JPH0169892U/ja
Application granted granted Critical
Publication of JPH0449272Y2 publication Critical patent/JPH0449272Y2/ja
Expired legal-status Critical Current

Links

Landscapes

  • Earth Drilling (AREA)
JP16668487U 1987-10-29 1987-10-29 Expired JPH0449272Y2 (enrdf_load_stackoverflow)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16668487U JPH0449272Y2 (enrdf_load_stackoverflow) 1987-10-29 1987-10-29

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16668487U JPH0449272Y2 (enrdf_load_stackoverflow) 1987-10-29 1987-10-29

Publications (2)

Publication Number Publication Date
JPH0169892U JPH0169892U (enrdf_load_stackoverflow) 1989-05-09
JPH0449272Y2 true JPH0449272Y2 (enrdf_load_stackoverflow) 1992-11-19

Family

ID=31454292

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16668487U Expired JPH0449272Y2 (enrdf_load_stackoverflow) 1987-10-29 1987-10-29

Country Status (1)

Country Link
JP (1) JPH0449272Y2 (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
JPH0169892U (enrdf_load_stackoverflow) 1989-05-09

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