JPS61164387U - - Google Patents

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Publication number
JPS61164387U
JPS61164387U JP4693885U JP4693885U JPS61164387U JP S61164387 U JPS61164387 U JP S61164387U JP 4693885 U JP4693885 U JP 4693885U JP 4693885 U JP4693885 U JP 4693885U JP S61164387 U JPS61164387 U JP S61164387U
Authority
JP
Japan
Prior art keywords
bit body
pilot part
bit
button
tip
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
JP4693885U
Other languages
English (en)
Japanese (ja)
Other versions
JPH0242792Y2 (US20090163788A1-20090625-C00002.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 JP1985046938U priority Critical patent/JPH0242792Y2/ja
Publication of JPS61164387U publication Critical patent/JPS61164387U/ja
Application granted granted Critical
Publication of JPH0242792Y2 publication Critical patent/JPH0242792Y2/ja
Expired legal-status Critical Current

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  • Earth Drilling (AREA)
JP1985046938U 1985-03-30 1985-03-30 Expired JPH0242792Y2 (US20090163788A1-20090625-C00002.png)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1985046938U JPH0242792Y2 (US20090163788A1-20090625-C00002.png) 1985-03-30 1985-03-30

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1985046938U JPH0242792Y2 (US20090163788A1-20090625-C00002.png) 1985-03-30 1985-03-30

Publications (2)

Publication Number Publication Date
JPS61164387U true JPS61164387U (US20090163788A1-20090625-C00002.png) 1986-10-11
JPH0242792Y2 JPH0242792Y2 (US20090163788A1-20090625-C00002.png) 1990-11-14

Family

ID=30561801

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1985046938U Expired JPH0242792Y2 (US20090163788A1-20090625-C00002.png) 1985-03-30 1985-03-30

Country Status (1)

Country Link
JP (1) JPH0242792Y2 (US20090163788A1-20090625-C00002.png)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009019463A (ja) * 2007-07-13 2009-01-29 Okumura Corp ガイドロッド付き穿孔装置

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58151407A (ja) * 1982-03-03 1983-09-08 Kawasaki Steel Corp 高炉出銑口座ぐり用ビツト

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58151407A (ja) * 1982-03-03 1983-09-08 Kawasaki Steel Corp 高炉出銑口座ぐり用ビツト

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009019463A (ja) * 2007-07-13 2009-01-29 Okumura Corp ガイドロッド付き穿孔装置

Also Published As

Publication number Publication date
JPH0242792Y2 (US20090163788A1-20090625-C00002.png) 1990-11-14

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