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经营范围
发明名称
TRAPPING FLOATS
摘要
申请公布号
CA470965(A)
申请公布日期
1951.01.23
申请号
CAD470965
申请日期
申请人
BRUCE FREE
发明人
BRUCE FREE
分类号
主分类号
代理机构
代理人
主权项
地址
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