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发明名称
Erosion prevention apparatus
摘要
申请公布号
US3309876(A)
申请公布日期
1967.03.21
申请号
US19640344591
申请日期
1964.02.13
申请人
POTTER JOHN M
发明人
POTTER JOHN M.
分类号
E02B3/04
主分类号
E02B3/04
代理机构
代理人
主权项
地址
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