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发明名称
Arc-reducing roll-contact for general electrical contact use
摘要
申请公布号
US2521521(A)
申请公布日期
1950.09.05
申请号
US19480067836
申请日期
1948.12.29
申请人
ROLLER ELECTRIC & MANUFACTURING CO., INC.
发明人
JOHNSON CHESTER W.
分类号
H01H1/16
主分类号
H01H1/16
代理机构
代理人
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地址
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