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发明名称
Electrical system
摘要
申请公布号
US1977536(A)
申请公布日期
1934.10.16
申请号
US19320644249
申请日期
1932.11.25
申请人
TUBBS ERNEST A
发明人
TUBBS ERNEST A.
分类号
H03C1/24
主分类号
H03C1/24
代理机构
代理人
主权项
地址
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