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发明名称
Apparat til formindskelse af en vekselstrøms frekvens.
摘要
申请公布号
DK97831(C)
申请公布日期
1964.01.27
申请号
DK19560003353
申请日期
1949.11.01
申请人
ALEX GROSMAN
发明人
ALEX GROSMAN
分类号
H03B;(IPC1-7):H03B
主分类号
H03B
代理机构
代理人
主权项
地址
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