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发明名称
FRAME DEVICE
摘要
申请公布号
CA317578(A)
申请公布日期
1931.12.01
申请号
CAD317578
申请日期
申请人
DAVID A. MCCOWAN
发明人
DAVID A. MCCOWAN
分类号
主分类号
代理机构
代理人
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地址
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