JPH0446181U - - Google Patents

Info

Publication number
JPH0446181U
JPH0446181U JP8631590U JP8631590U JPH0446181U JP H0446181 U JPH0446181 U JP H0446181U JP 8631590 U JP8631590 U JP 8631590U JP 8631590 U JP8631590 U JP 8631590U JP H0446181 U JPH0446181 U JP H0446181U
Authority
JP
Japan
Prior art keywords
drill rod
boring machine
vibrator
bit
high frequency
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
JP8631590U
Other languages
English (en)
Japanese (ja)
Other versions
JPH0726476Y2 (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 JP1990086315U priority Critical patent/JPH0726476Y2/ja
Publication of JPH0446181U publication Critical patent/JPH0446181U/ja
Application granted granted Critical
Publication of JPH0726476Y2 publication Critical patent/JPH0726476Y2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Earth Drilling (AREA)
JP1990086315U 1990-08-17 1990-08-17 ボーリングマシン Expired - Lifetime JPH0726476Y2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1990086315U JPH0726476Y2 (ja) 1990-08-17 1990-08-17 ボーリングマシン

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1990086315U JPH0726476Y2 (ja) 1990-08-17 1990-08-17 ボーリングマシン

Publications (2)

Publication Number Publication Date
JPH0446181U true JPH0446181U (enrdf_load_stackoverflow) 1992-04-20
JPH0726476Y2 JPH0726476Y2 (ja) 1995-06-14

Family

ID=31817925

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1990086315U Expired - Lifetime JPH0726476Y2 (ja) 1990-08-17 1990-08-17 ボーリングマシン

Country Status (1)

Country Link
JP (1) JPH0726476Y2 (enrdf_load_stackoverflow)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49123101A (enrdf_load_stackoverflow) * 1973-03-30 1974-11-25

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49123101A (enrdf_load_stackoverflow) * 1973-03-30 1974-11-25

Also Published As

Publication number Publication date
JPH0726476Y2 (ja) 1995-06-14

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