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发明名称
SEWER CLEANOUT Y-BRANCH
摘要
申请公布号
CA702003(A)
申请公布日期
1965.01.19
申请号
CAD702003
申请日期
申请人
STANLEY J. MASON
发明人
STANLEY J. MASON
分类号
主分类号
代理机构
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