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发明名称
Venetian blind cleaning machines
摘要
申请公布号
US2816304(A)
申请公布日期
1957.12.17
申请号
US19540473547
申请日期
1954.12.07
申请人
PETERSON CLARENCE A
发明人
PETERSON CLARENCE A.
分类号
A47L4/00
主分类号
A47L4/00
代理机构
代理人
主权项
地址
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