JPS51150804A - Device for enlarging hole - Google Patents

Device for enlarging hole

Info

Publication number
JPS51150804A
JPS51150804A JP7508675A JP7508675A JPS51150804A JP S51150804 A JPS51150804 A JP S51150804A JP 7508675 A JP7508675 A JP 7508675A JP 7508675 A JP7508675 A JP 7508675A JP S51150804 A JPS51150804 A JP S51150804A
Authority
JP
Japan
Prior art keywords
enlarging hole
enlarging
hole
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
JP7508675A
Other languages
English (en)
Japanese (ja)
Other versions
JPS539442B2 (OSRAM
Inventor
Katsuyoshi Suzuki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
DAIYA KONSARUTANTO KK
Dia Consultant Kk
Original Assignee
DAIYA KONSARUTANTO KK
Dia Consultant Kk
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 by DAIYA KONSARUTANTO KK, Dia Consultant Kk filed Critical DAIYA KONSARUTANTO KK
Priority to JP7508675A priority Critical patent/JPS51150804A/ja
Publication of JPS51150804A publication Critical patent/JPS51150804A/ja
Publication of JPS539442B2 publication Critical patent/JPS539442B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Earth Drilling (AREA)
JP7508675A 1975-06-20 1975-06-20 Device for enlarging hole Granted JPS51150804A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7508675A JPS51150804A (en) 1975-06-20 1975-06-20 Device for enlarging hole

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7508675A JPS51150804A (en) 1975-06-20 1975-06-20 Device for enlarging hole

Publications (2)

Publication Number Publication Date
JPS51150804A true JPS51150804A (en) 1976-12-24
JPS539442B2 JPS539442B2 (OSRAM) 1978-04-06

Family

ID=13566002

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7508675A Granted JPS51150804A (en) 1975-06-20 1975-06-20 Device for enlarging hole

Country Status (1)

Country Link
JP (1) JPS51150804A (OSRAM)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014213555A (ja) * 2013-04-26 2014-11-17 Ｆｓテクニカル株式会社 拡径用ドリルビット

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014213555A (ja) * 2013-04-26 2014-11-17 Ｆｓテクニカル株式会社 拡径用ドリルビット

Also Published As

Publication number Publication date
JPS539442B2 (OSRAM) 1978-04-06

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