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发明名称
Vibrator device
摘要
申请公布号
US2290725(A)
申请公布日期
1942.07.21
申请号
US19390297880
申请日期
1939.10.04
申请人
TELEFUNKEN GESELLSCHAFT FUR DRAHTLOSE TELEGRAPHIE M. B. H.
发明人
BARTELS HANS;LEIFER ALFRED
分类号
B01D29/00;H01H50/76;H02M7/62
主分类号
B01D29/00
代理机构
代理人
主权项
地址
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