JPS56153089A - Labor-saving large calibre drilling - Google Patents

Labor-saving large calibre drilling

Info

Publication number
JPS56153089A
JPS56153089A JP5643580A JP5643580A JPS56153089A JP S56153089 A JPS56153089 A JP S56153089A JP 5643580 A JP5643580 A JP 5643580A JP 5643580 A JP5643580 A JP 5643580A JP S56153089 A JPS56153089 A JP S56153089A
Authority
JP
Japan
Prior art keywords
labor
saving large
large calibre
drilling
calibre drilling
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
JP5643580A
Other languages
Japanese (ja)
Inventor
Takeshi Yamamoto
Masanaga Ootani
Shiyuusaku Maeno
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP5643580A priority Critical patent/JPS56153089A/en
Publication of JPS56153089A publication Critical patent/JPS56153089A/en
Pending legal-status Critical Current

Links

JP5643580A 1980-04-28 1980-04-28 Labor-saving large calibre drilling Pending JPS56153089A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5643580A JPS56153089A (en) 1980-04-28 1980-04-28 Labor-saving large calibre drilling

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5643580A JPS56153089A (en) 1980-04-28 1980-04-28 Labor-saving large calibre drilling

Publications (1)

Publication Number Publication Date
JPS56153089A true JPS56153089A (en) 1981-11-26

Family

ID=13026999

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5643580A Pending JPS56153089A (en) 1980-04-28 1980-04-28 Labor-saving large calibre drilling

Country Status (1)

Country Link
JP (1) JPS56153089A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8919173B2 (en) 2005-03-28 2014-12-30 Sumitomo Riko Company Limited Composite hose with a corrugated metal tube and method for making the same

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS517735A (en) * 1974-07-09 1976-01-22 Tsugio Matsumura Suidokojitoniokeru kutsusakudoshahanshutsusochi
JPS52104401A (en) * 1976-03-01 1977-09-01 Tone Koji Kk Air reversing type boring system

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS517735A (en) * 1974-07-09 1976-01-22 Tsugio Matsumura Suidokojitoniokeru kutsusakudoshahanshutsusochi
JPS52104401A (en) * 1976-03-01 1977-09-01 Tone Koji Kk Air reversing type boring system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8919173B2 (en) 2005-03-28 2014-12-30 Sumitomo Riko Company Limited Composite hose with a corrugated metal tube and method for making the same

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