JPS62176283U - - Google Patents

Info

Publication number
JPS62176283U
JPS62176283U JP6249186U JP6249186U JPS62176283U JP S62176283 U JPS62176283 U JP S62176283U JP 6249186 U JP6249186 U JP 6249186U JP 6249186 U JP6249186 U JP 6249186U JP S62176283 U JPS62176283 U JP S62176283U
Authority
JP
Japan
Prior art keywords
boom
cylinder
drive device
rotation drive
kelly bar
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
JP6249186U
Other languages
English (en)
Japanese (ja)
Other versions
JPH0447275Y2 (enExample
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 JP1986062491U priority Critical patent/JPH0447275Y2/ja
Publication of JPS62176283U publication Critical patent/JPS62176283U/ja
Application granted granted Critical
Publication of JPH0447275Y2 publication Critical patent/JPH0447275Y2/ja
Expired legal-status Critical Current

Links

Landscapes

  • Earth Drilling (AREA)
JP1986062491U 1986-04-24 1986-04-24 Expired JPH0447275Y2 (enExample)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1986062491U JPH0447275Y2 (enExample) 1986-04-24 1986-04-24

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1986062491U JPH0447275Y2 (enExample) 1986-04-24 1986-04-24

Publications (2)

Publication Number Publication Date
JPS62176283U true JPS62176283U (enExample) 1987-11-09
JPH0447275Y2 JPH0447275Y2 (enExample) 1992-11-09

Family

ID=30896820

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1986062491U Expired JPH0447275Y2 (enExample) 1986-04-24 1986-04-24

Country Status (1)

Country Link
JP (1) JPH0447275Y2 (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02116583U (enExample) * 1989-03-06 1990-09-18

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5663281U (enExample) * 1979-10-18 1981-05-28

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5663281U (enExample) * 1979-10-18 1981-05-28

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02116583U (enExample) * 1989-03-06 1990-09-18

Also Published As

Publication number Publication date
JPH0447275Y2 (enExample) 1992-11-09

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