JPS5677493A - Hole expander - Google Patents

Hole expander

Info

Publication number
JPS5677493A
JPS5677493A JP15185979A JP15185979A JPS5677493A JP S5677493 A JPS5677493 A JP S5677493A JP 15185979 A JP15185979 A JP 15185979A JP 15185979 A JP15185979 A JP 15185979A JP S5677493 A JPS5677493 A JP S5677493A
Authority
JP
Japan
Prior art keywords
hole expander
expander
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
JP15185979A
Other languages
Japanese (ja)
Other versions
JPS589232B2 (en
Inventor
Hiroyuki Hamamura
Hiroyuki Kawasaki
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.)
Tone Boring Co Ltd
Original Assignee
Tone Boring Co Ltd
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 Tone Boring Co Ltd filed Critical Tone Boring Co Ltd
Priority to JP54151859A priority Critical patent/JPS589232B2/en
Publication of JPS5677493A publication Critical patent/JPS5677493A/en
Publication of JPS589232B2 publication Critical patent/JPS589232B2/en
Expired legal-status Critical Current

Links

JP54151859A 1979-11-22 1979-11-22 hole expanding device Expired JPS589232B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP54151859A JPS589232B2 (en) 1979-11-22 1979-11-22 hole expanding device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP54151859A JPS589232B2 (en) 1979-11-22 1979-11-22 hole expanding device

Publications (2)

Publication Number Publication Date
JPS5677493A true JPS5677493A (en) 1981-06-25
JPS589232B2 JPS589232B2 (en) 1983-02-19

Family

ID=15527802

Family Applications (1)

Application Number Title Priority Date Filing Date
JP54151859A Expired JPS589232B2 (en) 1979-11-22 1979-11-22 hole expanding device

Country Status (1)

Country Link
JP (1) JPS589232B2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0434974Y2 (en) * 1985-06-18 1992-08-19
CN112805603B (en) 2018-10-02 2023-10-20 东洋纺株式会社 Liquid crystal display device, polarizing plate, and polarizing plate protective film
EP4235235A1 (en) 2020-10-23 2023-08-30 Toyobo Co., Ltd. Polyethylene terephthalate-based resin film, and polarizing plate, transparent conductive film, touch panel, and image display device using same

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51101602U (en) * 1975-02-14 1976-08-14
JPS54135401A (en) * 1978-04-11 1979-10-20 Tone Boring Co Hole expanding device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51101602U (en) * 1975-02-14 1976-08-14
JPS54135401A (en) * 1978-04-11 1979-10-20 Tone Boring Co Hole expanding device

Also Published As

Publication number Publication date
JPS589232B2 (en) 1983-02-19

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