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发明名称
SCREEN CLOTH
摘要
申请公布号
CA380026(A)
申请公布日期
1939.03.14
申请号
CAD380026
申请日期
申请人
EWING DEVELOPMENT COMPANY
发明人
JOHN J. GREBE
分类号
主分类号
代理机构
代理人
主权项
地址
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