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经营范围
发明名称
Fixture support for hung ceilings
摘要
申请公布号
US2930564(A)
申请公布日期
1960.03.29
申请号
US19560621654
申请日期
1956.11.13
申请人
MAIER ROBERT W
发明人
MAIER ROBERT W.
分类号
E04B9/00
主分类号
E04B9/00
代理机构
代理人
主权项
地址
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