JPS5766290A - Screw reinforced boring rod - Google Patents

Screw reinforced boring rod

Info

Publication number
JPS5766290A
JPS5766290A JP13955480A JP13955480A JPS5766290A JP S5766290 A JPS5766290 A JP S5766290A JP 13955480 A JP13955480 A JP 13955480A JP 13955480 A JP13955480 A JP 13955480A JP S5766290 A JPS5766290 A JP S5766290A
Authority
JP
Japan
Prior art keywords
boring rod
screw reinforced
reinforced
screw
boring
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
JP13955480A
Other languages
Japanese (ja)
Other versions
JPS628595B2 (en
Inventor
Toshihiko Satou
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 JP13955480A priority Critical patent/JPS5766290A/en
Publication of JPS5766290A publication Critical patent/JPS5766290A/en
Publication of JPS628595B2 publication Critical patent/JPS628595B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Earth Drilling (AREA)
JP13955480A 1980-10-06 1980-10-06 Screw reinforced boring rod Granted JPS5766290A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13955480A JPS5766290A (en) 1980-10-06 1980-10-06 Screw reinforced boring rod

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13955480A JPS5766290A (en) 1980-10-06 1980-10-06 Screw reinforced boring rod

Publications (2)

Publication Number Publication Date
JPS5766290A true JPS5766290A (en) 1982-04-22
JPS628595B2 JPS628595B2 (en) 1987-02-24

Family

ID=15247962

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13955480A Granted JPS5766290A (en) 1980-10-06 1980-10-06 Screw reinforced boring rod

Country Status (1)

Country Link
JP (1) JPS5766290A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5252982U (en) * 1975-10-15 1977-04-15
JPS53132447A (en) * 1977-04-25 1978-11-18 Hughes Tool Co Tool joint subject to surface hardening that has smooth surface

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5252982U (en) * 1975-10-15 1977-04-15
JPS53132447A (en) * 1977-04-25 1978-11-18 Hughes Tool Co Tool joint subject to surface hardening that has smooth surface

Also Published As

Publication number Publication date
JPS628595B2 (en) 1987-02-24

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