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发明名称
SOIL PIPE DRAINAGE SYSTEM
摘要
申请公布号
CA305097(A)
申请公布日期
1930.10.28
申请号
CAD305097
申请日期
申请人
ALFRED E. STRINGER
发明人
ALFRED E. STRINGER
分类号
主分类号
代理机构
代理人
主权项
地址
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