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发明名称
FILTER MEANS AND METHOD OF MAKING THE SAME
摘要
申请公布号
CA855037(A)
申请公布日期
1970.11.03
申请号
CAD855037
申请日期
申请人
VACCO INDUSTRIES
发明人
RONALD K. PEARSON
分类号
主分类号
代理机构
代理人
主权项
地址
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