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经营范围
发明名称
SELF CLEANING OF FILTERING MASS CARRIER
摘要
申请公布号
CA548293(A)
申请公布日期
1957.11.05
申请号
CAD548293
申请日期
申请人
BOHLER AND WEBER KG.
发明人
ERWIN PETRICH
分类号
主分类号
代理机构
代理人
主权项
地址
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