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发明名称
SHEET METAL SCREEN
摘要
申请公布号
CA578450(A)
申请公布日期
1959.06.30
申请号
CAD578450
申请日期
申请人
FRIEDRICH GRAEPEL
发明人
FRIEDRICH GRAEPEL
分类号
主分类号
代理机构
代理人
主权项
地址
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