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发明名称
Method of making control elements for direction finder compensators
摘要
申请公布号
US1932627(A)
申请公布日期
1933.10.31
申请号
US19290403340
申请日期
1929.10.29
申请人
TELEFUNKEN GESELLSCHAFT FUR DRAHTLOSE TELEGRAPHIE
发明人
LEIB AUGUST
分类号
B21D53/00
主分类号
B21D53/00
代理机构
代理人
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地址
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