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发明名称
Variomètre avec contacts à galets
摘要
申请公布号
FR894836(A)
申请公布日期
1945.01.08
申请号
FRD894836
申请日期
1943.05.21
申请人
TELEFUNKEN GESELLSCHAFT FU:R DRAHTLOSE TELEGRAPHIE M. B. H.
发明人
分类号
H01F21/00
主分类号
H01F21/00
代理机构
代理人
主权项
地址
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