JPS63176193U - - Google Patents

Info

Publication number
JPS63176193U
JPS63176193U JP6531587U JP6531587U JPS63176193U JP S63176193 U JPS63176193 U JP S63176193U JP 6531587 U JP6531587 U JP 6531587U JP 6531587 U JP6531587 U JP 6531587U JP S63176193 U JPS63176193 U JP S63176193U
Authority
JP
Japan
Prior art keywords
drill rod
ring
swivel joint
threaded portion
fitted
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
JP6531587U
Other languages
English (en)
Japanese (ja)
Other versions
JPH0439349Y2 (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 JP6531587U priority Critical patent/JPH0439349Y2/ja
Publication of JPS63176193U publication Critical patent/JPS63176193U/ja
Application granted granted Critical
Publication of JPH0439349Y2 publication Critical patent/JPH0439349Y2/ja
Expired legal-status Critical Current

Links

Landscapes

  • Earth Drilling (AREA)
JP6531587U 1987-05-01 1987-05-01 Expired JPH0439349Y2 (enrdf_load_stackoverflow)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6531587U JPH0439349Y2 (enrdf_load_stackoverflow) 1987-05-01 1987-05-01

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6531587U JPH0439349Y2 (enrdf_load_stackoverflow) 1987-05-01 1987-05-01

Publications (2)

Publication Number Publication Date
JPS63176193U true JPS63176193U (enrdf_load_stackoverflow) 1988-11-15
JPH0439349Y2 JPH0439349Y2 (enrdf_load_stackoverflow) 1992-09-14

Family

ID=30902270

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6531587U Expired JPH0439349Y2 (enrdf_load_stackoverflow) 1987-05-01 1987-05-01

Country Status (1)

Country Link
JP (1) JPH0439349Y2 (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
JPH0439349Y2 (enrdf_load_stackoverflow) 1992-09-14

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