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发明名称
Window cleaning system
摘要
申请公布号
US2274294(A)
申请公布日期
1942.02.24
申请号
US19390265615
申请日期
1939.04.01
申请人
TRICO PRODUCTS CORPORATION
发明人
HORTON ERWIN C.
分类号
B60S1/10
主分类号
B60S1/10
代理机构
代理人
主权项
地址
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