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发明名称
Improvements in or relating to roofs
摘要
申请公布号
GB1028906(A)
申请公布日期
1966.05.11
申请号
GB19630047524
申请日期
1963.12.02
申请人
GIOVANNI VARLONGA
发明人
分类号
E04D3/366;E04D13/16
主分类号
E04D3/366
代理机构
代理人
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