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发明名称
WEB CLEANER
摘要
申请公布号
US3546733(A)
申请公布日期
1970.12.15
申请号
USD3546733
申请日期
1968.08.07
申请人
MINNESOTA MINING & MFG. CO.
发明人
DAVID G. JOHNSON
分类号
G03D15/00
主分类号
G03D15/00
代理机构
代理人
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