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发明名称
Metal roofing
摘要
申请公布号
US2124830(A)
申请公布日期
1938.07.26
申请号
US19360075102
申请日期
1936.04.18
申请人
KARL ROTH
发明人
ROTH KARL
分类号
E04D3/365
主分类号
E04D3/365
代理机构
代理人
主权项
地址
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