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经营范围
发明名称
ROCKING PLATFORM
摘要
申请公布号
PL120411(B1)
申请公布日期
1982.02.27
申请号
PL19800225878
申请日期
1980.07.23
申请人
发明人
分类号
B66B17/18;E21B7/00;E21D;(IPC1-7):B66B17/18
主分类号
B66B17/18
代理机构
代理人
主权项
地址
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