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发明名称
Brush block
摘要
申请公布号
US2954540(A)
申请公布日期
1960.09.27
申请号
US19570702318
申请日期
1957.12.12
申请人
GENERAL PRECISION, INC.
发明人
STUPAR WESLEY E.
分类号
H03M1/00
主分类号
H03M1/00
代理机构
代理人
主权项
地址
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