Title:
海底地下探査掘削機
Document Type and Number:
Japanese Patent JP5696920
Kind Code:
B2
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| JPS6114387 | SUB-STRUCTURE OF DRILLING RIG |
Inventors:
Koki Tamada
Application Number:
JP2010008850A
Publication Date:
April 08, 2015
Filing Date:
January 19, 2010
Export Citation:
Assignee:
Okada Tamaki
International Classes:
E21B15/02; E21B3/02
Domestic Patent References:
| JP54038101U | ||||
| JP5506286A | ||||
| JP6009103Y2 | ||||
| JP53021001A | ||||
| JP3027113Y2 |