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发明名称
CLEANING APPARATUS
摘要
申请公布号
US3453681(A)
申请公布日期
1969.07.08
申请号
USD3453681
申请日期
1967.08.14
申请人
INTERN. BUSINESS MACHINES CORP.
发明人
GERALD L. WIEDERHOLD
分类号
G03D15/00;(IPC1-7):A47L7/02;G03D13/00
主分类号
G03D15/00
代理机构
代理人
主权项
地址
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