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发明名称
Aerating device
摘要
申请公布号
US2842347(A)
申请公布日期
1958.07.08
申请号
US19530399189
申请日期
1953.12.21
申请人
RIPLEY JR GLENN Q
发明人
JR. GLENN Q. RIPLEY,
分类号
E03C1/084
主分类号
E03C1/084
代理机构
代理人
主权项
地址
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