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发明名称
METHOD OF CURVE PROPULSION CONSTRUCTION OF PROPULSION PIPE
摘要
申请公布号
JPS621997(A)
申请公布日期
1987.01.07
申请号
JP19850109225
申请日期
1985.05.23
申请人
YONAIYAMA TAKASHI
发明人
YONAIYAMA TAKASHI
分类号
E21D9/093;E21D9/06
主分类号
E21D9/093
代理机构
代理人
主权项
地址
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