JPS57158488A - Cutter bit - Google Patents

Cutter bit

Info

Publication number
JPS57158488A
JPS57158488A JP4263181A JP4263181A JPS57158488A JP S57158488 A JPS57158488 A JP S57158488A JP 4263181 A JP4263181 A JP 4263181A JP 4263181 A JP4263181 A JP 4263181A JP S57158488 A JPS57158488 A JP S57158488A
Authority
JP
Japan
Prior art keywords
cutter bit
cutter
bit
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
JP4263181A
Other languages
Japanese (ja)
Inventor
Toshihiko Satou
Tetsuo Fujimori
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
TONE BORING KK
Original Assignee
Tone Boring Co Ltd
TONE BORING 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 Tone Boring Co Ltd, TONE BORING KK filed Critical Tone Boring Co Ltd
Priority to JP4263181A priority Critical patent/JPS57158488A/en
Publication of JPS57158488A publication Critical patent/JPS57158488A/en
Pending legal-status Critical Current

Links

Landscapes

  • Earth Drilling (AREA)
JP4263181A 1981-03-24 1981-03-24 Cutter bit Pending JPS57158488A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4263181A JPS57158488A (en) 1981-03-24 1981-03-24 Cutter bit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4263181A JPS57158488A (en) 1981-03-24 1981-03-24 Cutter bit

Publications (1)

Publication Number Publication Date
JPS57158488A true JPS57158488A (en) 1982-09-30

Family

ID=12641356

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4263181A Pending JPS57158488A (en) 1981-03-24 1981-03-24 Cutter bit

Country Status (1)

Country Link
JP (1) JPS57158488A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4937726U (en) * 1972-07-04 1974-04-03

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4937726U (en) * 1972-07-04 1974-04-03

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