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发明名称
Roofing
摘要
申请公布号
US1959610(A)
申请公布日期
1934.05.22
申请号
US19310581117
申请日期
1931.12.15
申请人
AMERICAN STEEL BAND COMPANY
发明人
BOWMAN JOSEPH H.
分类号
E04D3/38
主分类号
E04D3/38
代理机构
代理人
主权项
地址
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