JPH0393894U - - Google Patents

Info

Publication number
JPH0393894U
JPH0393894U JP14289789U JP14289789U JPH0393894U JP H0393894 U JPH0393894 U JP H0393894U JP 14289789 U JP14289789 U JP 14289789U JP 14289789 U JP14289789 U JP 14289789U JP H0393894 U JPH0393894 U JP H0393894U
Authority
JP
Japan
Prior art keywords
bit
lock bit
circumferential surface
bit head
head
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.)
Pending
Application number
JP14289789U
Other languages
English (en)
Japanese (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 JP14289789U priority Critical patent/JPH0393894U/ja
Publication of JPH0393894U publication Critical patent/JPH0393894U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Earth Drilling (AREA)
JP14289789U 1989-10-25 1989-12-11 Pending JPH0393894U (US20080005853A1-20080110-C00027.png)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14289789U JPH0393894U (US20080005853A1-20080110-C00027.png) 1989-10-25 1989-12-11

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP12497489 1989-10-25
JP14289789U JPH0393894U (US20080005853A1-20080110-C00027.png) 1989-10-25 1989-12-11

Publications (1)

Publication Number Publication Date
JPH0393894U true JPH0393894U (US20080005853A1-20080110-C00027.png) 1991-09-25

Family

ID=31890401

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14289789U Pending JPH0393894U (US20080005853A1-20080110-C00027.png) 1989-10-25 1989-12-11

Country Status (1)

Country Link
JP (1) JPH0393894U (US20080005853A1-20080110-C00027.png)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5435561A (en) * 1977-08-22 1979-03-15 Fmc Corp Method and device for winding up continuous strapping
JPS59161587A (ja) * 1983-02-18 1984-09-12 ストラタ・ビツト・コ−ポレイシヨン ドリルビツト及びその切削要素

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5435561A (en) * 1977-08-22 1979-03-15 Fmc Corp Method and device for winding up continuous strapping
JPS59161587A (ja) * 1983-02-18 1984-09-12 ストラタ・ビツト・コ−ポレイシヨン ドリルビツト及びその切削要素

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