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发明名称
Lamp construction having column switching means
摘要
申请公布号
US2584548(A)
申请公布日期
1952.02.05
申请号
US19500167338
申请日期
1950.06.10
申请人
CALISSI PAUL C
发明人
CALISSI PAUL C.
分类号
H01H23/14
主分类号
H01H23/14
代理机构
代理人
主权项
地址
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