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发明名称
Fabricated building block
摘要
申请公布号
US2173020(A)
申请公布日期
1939.09.12
申请号
US19370136863
申请日期
1937.04.14
申请人
KUBACH ROBERT B
发明人
KUBACH ROBERT B.
分类号
E04B2/02;E04C1/40
主分类号
E04B2/02
代理机构
代理人
主权项
地址
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