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经营范围
发明名称
Two-skin roofing
摘要
申请公布号
GB1004964(A)
申请公布日期
1965.09.22
申请号
GB19630031726
申请日期
1963.08.12
申请人
RICHARD BECKERS
发明人
分类号
E04D13/03
主分类号
E04D13/03
代理机构
代理人
主权项
地址
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