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发明名称
Window shade
摘要
申请公布号
US1810899(A)
申请公布日期
1931.06.23
申请号
US19290349584
申请日期
1929.03.25
申请人
WOODWEB SHADE MANUFACTURERS, INC.
发明人
BOEHM CARL NORMAN
分类号
E04F10/08
主分类号
E04F10/08
代理机构
代理人
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地址
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