JPH0547823Y2 - - Google Patents

Info

Publication number
JPH0547823Y2
JPH0547823Y2 JP3156488U JP3156488U JPH0547823Y2 JP H0547823 Y2 JPH0547823 Y2 JP H0547823Y2 JP 3156488 U JP3156488 U JP 3156488U JP 3156488 U JP3156488 U JP 3156488U JP H0547823 Y2 JPH0547823 Y2 JP H0547823Y2
Authority
JP
Japan
Prior art keywords
boom
lower link
link member
kelly bar
telescopic cylinder
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 - Lifetime
Application number
JP3156488U
Other languages
English (en)
Japanese (ja)
Other versions
JPH01137390U (US20110009641A1-20110113-C00256.png
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 JP3156488U priority Critical patent/JPH0547823Y2/ja
Publication of JPH01137390U publication Critical patent/JPH01137390U/ja
Application granted granted Critical
Publication of JPH0547823Y2 publication Critical patent/JPH0547823Y2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Earth Drilling (AREA)
JP3156488U 1988-03-11 1988-03-11 Expired - Lifetime JPH0547823Y2 (US20110009641A1-20110113-C00256.png)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3156488U JPH0547823Y2 (US20110009641A1-20110113-C00256.png) 1988-03-11 1988-03-11

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3156488U JPH0547823Y2 (US20110009641A1-20110113-C00256.png) 1988-03-11 1988-03-11

Publications (2)

Publication Number Publication Date
JPH01137390U JPH01137390U (US20110009641A1-20110113-C00256.png) 1989-09-20
JPH0547823Y2 true JPH0547823Y2 (US20110009641A1-20110113-C00256.png) 1993-12-16

Family

ID=31257506

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3156488U Expired - Lifetime JPH0547823Y2 (US20110009641A1-20110113-C00256.png) 1988-03-11 1988-03-11

Country Status (1)

Country Link
JP (1) JPH0547823Y2 (US20110009641A1-20110113-C00256.png)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2537297Y2 (ja) * 1991-11-18 1997-05-28 住友建機株式会社 建設機械におけるマスト格納機構
JPH0738460Y2 (ja) * 1993-10-04 1995-09-06 日本車輌製造株式会社 アースドリル

Also Published As

Publication number Publication date
JPH01137390U (US20110009641A1-20110113-C00256.png) 1989-09-20

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