JPH03128786U - - Google Patents

Info

Publication number
JPH03128786U
JPH03128786U JP3824590U JP3824590U JPH03128786U JP H03128786 U JPH03128786 U JP H03128786U JP 3824590 U JP3824590 U JP 3824590U JP 3824590 U JP3824590 U JP 3824590U JP H03128786 U JPH03128786 U JP H03128786U
Authority
JP
Japan
Prior art keywords
boom
fixing device
mast
contraction
expansion
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.)
Pending
Application number
JP3824590U
Other languages
English (en)
Japanese (ja)
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 JP3824590U priority Critical patent/JPH03128786U/ja
Publication of JPH03128786U publication Critical patent/JPH03128786U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Earth Drilling (AREA)
JP3824590U 1990-04-09 1990-04-09 Pending JPH03128786U (US20100012521A1-20100121-C00001.png)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3824590U JPH03128786U (US20100012521A1-20100121-C00001.png) 1990-04-09 1990-04-09

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3824590U JPH03128786U (US20100012521A1-20100121-C00001.png) 1990-04-09 1990-04-09

Publications (1)

Publication Number Publication Date
JPH03128786U true JPH03128786U (US20100012521A1-20100121-C00001.png) 1991-12-25

Family

ID=31546076

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3824590U Pending JPH03128786U (US20100012521A1-20100121-C00001.png) 1990-04-09 1990-04-09

Country Status (1)

Country Link
JP (1) JPH03128786U (US20100012521A1-20100121-C00001.png)

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