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发明名称
FILTER CARTRIDGE AND CYLINDER
摘要
申请公布号
CA389220(A)
申请公布日期
1940.06.04
申请号
CAD389220
申请日期
申请人
WILLIAM G. BURHANS
发明人
WILLIAM G. BURHANS
分类号
主分类号
代理机构
代理人
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