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发明名称
Process of making commutator blocks for cathode ray tubes
摘要
申请公布号
US2091863(A)
申请公布日期
1937.08.31
申请号
US19350015324
申请日期
1935.04.08
申请人
JACOB KESSLER
发明人
KESSLER JACOB
分类号
H01J29/43
主分类号
H01J29/43
代理机构
代理人
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