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发明名称
SCREEN FRAME
摘要
申请公布号
CA310024(A)
申请公布日期
1931.04.07
申请号
CAD310024
申请日期
申请人
WILLIAM J. DENNIS
发明人
WILLIAM J. DENNIS
分类号
主分类号
代理机构
代理人
主权项
地址
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