JPS4838203A - - Google Patents

Info

Publication number
JPS4838203A
JPS4838203A JP7218871A JP7218871A JPS4838203A JP S4838203 A JPS4838203 A JP S4838203A JP 7218871 A JP7218871 A JP 7218871A JP 7218871 A JP7218871 A JP 7218871A JP S4838203 A JPS4838203 A JP S4838203A
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
JP7218871A
Other languages
Japanese (ja)
Other versions
JPS5033962B2 (https=
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 JP7218871A priority Critical patent/JPS5033962B2/ja
Publication of JPS4838203A publication Critical patent/JPS4838203A/ja
Publication of JPS5033962B2 publication Critical patent/JPS5033962B2/ja
Expired legal-status Critical Current

Links

Landscapes

  • Earth Drilling (AREA)
JP7218871A 1971-09-18 1971-09-18 Expired JPS5033962B2 (https=)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7218871A JPS5033962B2 (https=) 1971-09-18 1971-09-18

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7218871A JPS5033962B2 (https=) 1971-09-18 1971-09-18

Publications (2)

Publication Number Publication Date
JPS4838203A true JPS4838203A (https=) 1973-06-05
JPS5033962B2 JPS5033962B2 (https=) 1975-11-05

Family

ID=13481971

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7218871A Expired JPS5033962B2 (https=) 1971-09-18 1971-09-18

Country Status (1)

Country Link
JP (1) JPS5033962B2 (https=)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5239501A (en) * 1975-09-12 1977-03-26 Offshore Co Method and device for excavating underwater well
JPS62169090U (https=) * 1986-04-10 1987-10-27

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5239501A (en) * 1975-09-12 1977-03-26 Offshore Co Method and device for excavating underwater well
JPS62169090U (https=) * 1986-04-10 1987-10-27

Also Published As

Publication number Publication date
JPS5033962B2 (https=) 1975-11-05

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