JPS6220548Y2 - - Google Patents

Info

Publication number
JPS6220548Y2
JPS6220548Y2 JP15682380U JP15682380U JPS6220548Y2 JP S6220548 Y2 JPS6220548 Y2 JP S6220548Y2 JP 15682380 U JP15682380 U JP 15682380U JP 15682380 U JP15682380 U JP 15682380U JP S6220548 Y2 JPS6220548 Y2 JP S6220548Y2
Authority
JP
Japan
Prior art keywords
boom
hole
tip
drilling
frame body
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
JP15682380U
Other languages
English (en)
Japanese (ja)
Other versions
JPS5779686U (en]
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 JP15682380U priority Critical patent/JPS6220548Y2/ja
Publication of JPS5779686U publication Critical patent/JPS5779686U/ja
Application granted granted Critical
Publication of JPS6220548Y2 publication Critical patent/JPS6220548Y2/ja
Expired legal-status Critical Current

Links

JP15682380U 1980-10-31 1980-10-31 Expired JPS6220548Y2 (en])

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15682380U JPS6220548Y2 (en]) 1980-10-31 1980-10-31

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15682380U JPS6220548Y2 (en]) 1980-10-31 1980-10-31

Publications (2)

Publication Number Publication Date
JPS5779686U JPS5779686U (en]) 1982-05-17
JPS6220548Y2 true JPS6220548Y2 (en]) 1987-05-25

Family

ID=29515961

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15682380U Expired JPS6220548Y2 (en]) 1980-10-31 1980-10-31

Country Status (1)

Country Link
JP (1) JPS6220548Y2 (en])

Also Published As

Publication number Publication date
JPS5779686U (en]) 1982-05-17

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