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发明名称
Prepared roofing and means for making same
摘要
申请公布号
US1868751(A)
申请公布日期
1932.07.26
申请号
US19290395146
申请日期
1929.09.25
申请人
KOCH HENRY C
发明人
KOCH HENRY C.
分类号
E04D1/26
主分类号
E04D1/26
代理机构
代理人
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地址
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