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发明名称
FILTERING MEDIUM
摘要
申请公布号
CA354091(A)
申请公布日期
1935.11.12
申请号
CAD354091
申请日期
申请人
THE CANADIAN NATIONAL CARBON COMPANY;THE REPUBLIC CARBON COMPANY
发明人
LEROY COWLISHAW WERKING;BARTLEY EARL BROADWELL
分类号
主分类号
代理机构
代理人
主权项
地址
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