JPH0444707Y2 - - Google Patents

Info

Publication number
JPH0444707Y2
JPH0444707Y2 JP1986196231U JP19623186U JPH0444707Y2 JP H0444707 Y2 JPH0444707 Y2 JP H0444707Y2 JP 1986196231 U JP1986196231 U JP 1986196231U JP 19623186 U JP19623186 U JP 19623186U JP H0444707 Y2 JPH0444707 Y2 JP H0444707Y2
Authority
JP
Japan
Prior art keywords
casing
excavation
cylindrical
cylinder
blade
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
JP1986196231U
Other languages
English (en)
Japanese (ja)
Other versions
JPS63100592U (en:Method
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 JP1986196231U priority Critical patent/JPH0444707Y2/ja
Publication of JPS63100592U publication Critical patent/JPS63100592U/ja
Application granted granted Critical
Publication of JPH0444707Y2 publication Critical patent/JPH0444707Y2/ja
Expired legal-status Critical Current

Links

Landscapes

  • Earth Drilling (AREA)
JP1986196231U 1986-12-20 1986-12-20 Expired JPH0444707Y2 (en:Method)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1986196231U JPH0444707Y2 (en:Method) 1986-12-20 1986-12-20

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1986196231U JPH0444707Y2 (en:Method) 1986-12-20 1986-12-20

Publications (2)

Publication Number Publication Date
JPS63100592U JPS63100592U (en:Method) 1988-06-30
JPH0444707Y2 true JPH0444707Y2 (en:Method) 1992-10-21

Family

ID=31154863

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1986196231U Expired JPH0444707Y2 (en:Method) 1986-12-20 1986-12-20

Country Status (1)

Country Link
JP (1) JPH0444707Y2 (en:Method)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4532034Y1 (en:Method) * 1968-02-23 1970-12-08

Also Published As

Publication number Publication date
JPS63100592U (en:Method) 1988-06-30

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