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发明名称
Antisplitting device
摘要
申请公布号
US2287964(A)
申请公布日期
1942.06.30
申请号
US19410413686
申请日期
1941.10.04
申请人
BEEGLE RAYMOND E
发明人
BEEGLE RAYMOND E.
分类号
E01B3/06
主分类号
E01B3/06
代理机构
代理人
主权项
地址
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