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发明名称
DUST COLLECTOR FOR VACUUM CLEANERS, BLOWERS AND OTHER DUST FILTERS
摘要
申请公布号
CA533422(A)
申请公布日期
1956.11.20
申请号
CAD533422
申请日期
申请人
DOYLE VACUUM CLEANER COMPANY
发明人
DEWEY I. DOYLE, SR.
分类号
主分类号
代理机构
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