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发明名称
Conduit cleaning device
摘要
申请公布号
US2961675(A)
申请公布日期
1960.11.29
申请号
US19580778516
申请日期
1958.12.05
申请人
STICKNEY HAROLD S
发明人
STICKNEY HAROLD S.
分类号
E03C1/302
主分类号
E03C1/302
代理机构
代理人
主权项
地址
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