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发明名称
Form for concrete shelter
摘要
申请公布号
US3012300(A)
申请公布日期
1961.12.12
申请号
US19600015006
申请日期
1960.02.10
申请人
STORMASTER TORNADO SHELTER CO.
发明人
HARRIS FRANCIS LE ROY
分类号
E04G11/02
主分类号
E04G11/02
代理机构
代理人
主权项
地址
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