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发明名称
COLLECTING MACHINE FOR MINERAL MASS ON SEA BOTTOM
摘要
申请公布号
JPS56111790(A)
申请公布日期
1981.09.03
申请号
JP19800011532
申请日期
1980.02.04
申请人
TANAKA SHIZUO;TOMIOKA REIKO
发明人
TANAKA SHIZUO;TOMIOKA REIKO
分类号
E21C45/00;E21C45/04
主分类号
E21C45/00
代理机构
代理人
主权项
地址
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