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发明名称
Roofing and siding granules and the like
摘要
申请公布号
US2321674(A)
申请公布日期
1943.06.15
申请号
US19400337578
申请日期
1940.05.28
申请人
CARBIDE AND CARBON CHEMICALS CORPORATION
发明人
HARSHBERGER NORMAN P.
分类号
E04D7/00
主分类号
E04D7/00
代理机构
代理人
主权项
地址
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