JPS6438214U - - Google Patents

Info

Publication number
JPS6438214U
JPS6438214U JP13354187U JP13354187U JPS6438214U JP S6438214 U JPS6438214 U JP S6438214U JP 13354187 U JP13354187 U JP 13354187U JP 13354187 U JP13354187 U JP 13354187U JP S6438214 U JPS6438214 U JP S6438214U
Authority
JP
Japan
Prior art keywords
perforating blade
cutting edge
cutting
tip
drilled
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
JP13354187U
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 JP13354187U priority Critical patent/JPS6438214U/ja
Priority to US07/236,755 priority patent/US4909678A/en
Priority to EP88307998A priority patent/EP0306255B1/en
Priority to DE3855272T priority patent/DE3855272T2/de
Publication of JPS6438214U publication Critical patent/JPS6438214U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Drilling Tools (AREA)
JP13354187U 1987-08-31 1987-08-31 Pending JPS6438214U (enrdf_load_html_response)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP13354187U JPS6438214U (enrdf_load_html_response) 1987-08-31 1987-08-31
US07/236,755 US4909678A (en) 1987-08-31 1988-08-26 Boring apparatus for a laminated plate and boring cutter
EP88307998A EP0306255B1 (en) 1987-08-31 1988-08-30 Boring apparatus for a laminated plate and boring cutter
DE3855272T DE3855272T2 (de) 1987-08-31 1988-08-30 Rotierende Vorrichtung für geschichtete Platten und rotierendes Messer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13354187U JPS6438214U (enrdf_load_html_response) 1987-08-31 1987-08-31

Publications (1)

Publication Number Publication Date
JPS6438214U true JPS6438214U (enrdf_load_html_response) 1989-03-07

Family

ID=31391496

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13354187U Pending JPS6438214U (enrdf_load_html_response) 1987-08-31 1987-08-31

Country Status (1)

Country Link
JP (1) JPS6438214U (enrdf_load_html_response)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001157993A (ja) * 1999-12-02 2001-06-12 Ibiden Co Ltd 板状物の穴開け方法およびそのためのカッター

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001157993A (ja) * 1999-12-02 2001-06-12 Ibiden Co Ltd 板状物の穴開け方法およびそのためのカッター

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