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经营范围
发明名称
Hollow building block
摘要
申请公布号
GB694732(A)
申请公布日期
1953.07.29
申请号
GB19500020277
申请日期
1950.08.15
申请人
SUEDBAU SUEDDEUTSCHE BAUTECHNIK G.M.B.H.
发明人
分类号
E04B2/02;E04B2/14
主分类号
E04B2/02
代理机构
代理人
主权项
地址
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