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发明名称
Building block
摘要
申请公布号
US2037465(A)
申请公布日期
1936.04.14
申请号
US19350031008
申请日期
1935.07.12
申请人
ALFRED GIBSON;ARTHUR GIBSON
发明人
GIBSON ALFRED;GIBSON ARTHUR
分类号
E04F13/14
主分类号
E04F13/14
代理机构
代理人
主权项
地址
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