JPS50148203A - - Google Patents

Info

Publication number
JPS50148203A
JPS50148203A JP5682674A JP5682674A JPS50148203A JP S50148203 A JPS50148203 A JP S50148203A JP 5682674 A JP5682674 A JP 5682674A JP 5682674 A JP5682674 A JP 5682674A JP S50148203 A JPS50148203 A JP S50148203A
Authority
JP
Japan
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
JP5682674A
Other languages
Japanese (ja)
Other versions
JPS5646036B2 (enExample
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 filed Critical
Priority to JP5682674A priority Critical patent/JPS5646036B2/ja
Publication of JPS50148203A publication Critical patent/JPS50148203A/ja
Publication of JPS5646036B2 publication Critical patent/JPS5646036B2/ja
Expired legal-status Critical Current

Links

Landscapes

  • Earth Drilling (AREA)
JP5682674A 1974-05-21 1974-05-21 Expired JPS5646036B2 (enExample)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5682674A JPS5646036B2 (enExample) 1974-05-21 1974-05-21

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5682674A JPS5646036B2 (enExample) 1974-05-21 1974-05-21

Publications (2)

Publication Number Publication Date
JPS50148203A true JPS50148203A (enExample) 1975-11-27
JPS5646036B2 JPS5646036B2 (enExample) 1981-10-30

Family

ID=13038170

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5682674A Expired JPS5646036B2 (enExample) 1974-05-21 1974-05-21

Country Status (1)

Country Link
JP (1) JPS5646036B2 (enExample)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59185283A (ja) * 1983-04-04 1984-10-20 三井石炭鉱業株式会社 高圧水を利用したダウンザホ−ルさく孔方法
JPS60151990U (ja) * 1984-03-15 1985-10-09 株式会社筑豊製作所 ダウンザホ−ルハンマ−

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS501323A (enExample) * 1973-05-11 1975-01-08

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS501323A (enExample) * 1973-05-11 1975-01-08

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59185283A (ja) * 1983-04-04 1984-10-20 三井石炭鉱業株式会社 高圧水を利用したダウンザホ−ルさく孔方法
JPS60151990U (ja) * 1984-03-15 1985-10-09 株式会社筑豊製作所 ダウンザホ−ルハンマ−

Also Published As

Publication number Publication date
JPS5646036B2 (enExample) 1981-10-30

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