JPS62172794U - - Google Patents

Info

Publication number
JPS62172794U
JPS62172794U JP5341786U JP5341786U JPS62172794U JP S62172794 U JPS62172794 U JP S62172794U JP 5341786 U JP5341786 U JP 5341786U JP 5341786 U JP5341786 U JP 5341786U JP S62172794 U JPS62172794 U JP S62172794U
Authority
JP
Japan
Prior art keywords
pipe
excavation
pneumatic percussion
passage
air supply
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
JP5341786U
Other languages
English (en)
Japanese (ja)
Other versions
JPH0428957Y2 (es
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 JP1986053417U priority Critical patent/JPH0428957Y2/ja
Publication of JPS62172794U publication Critical patent/JPS62172794U/ja
Application granted granted Critical
Publication of JPH0428957Y2 publication Critical patent/JPH0428957Y2/ja
Expired legal-status Critical Current

Links

Landscapes

  • Earth Drilling (AREA)
JP1986053417U 1986-04-09 1986-04-09 Expired JPH0428957Y2 (es)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1986053417U JPH0428957Y2 (es) 1986-04-09 1986-04-09

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1986053417U JPH0428957Y2 (es) 1986-04-09 1986-04-09

Publications (2)

Publication Number Publication Date
JPS62172794U true JPS62172794U (es) 1987-11-02
JPH0428957Y2 JPH0428957Y2 (es) 1992-07-14

Family

ID=30879461

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1986053417U Expired JPH0428957Y2 (es) 1986-04-09 1986-04-09

Country Status (1)

Country Link
JP (1) JPH0428957Y2 (es)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4816601U (es) * 1971-07-05 1973-02-24
JPS4884802U (es) * 1972-01-18 1973-10-15
JPS59177494A (ja) * 1983-03-29 1984-10-08 工業技術院長 ライザ用テレスコピツクジヨイント

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4816601B1 (es) * 1966-11-12 1973-05-23

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4816601U (es) * 1971-07-05 1973-02-24
JPS4884802U (es) * 1972-01-18 1973-10-15
JPS59177494A (ja) * 1983-03-29 1984-10-08 工業技術院長 ライザ用テレスコピツクジヨイント

Also Published As

Publication number Publication date
JPH0428957Y2 (es) 1992-07-14

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