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摘要
申请公布号
FR916565(A)
申请公布日期
1946.12.10
申请号
FRD916565
申请日期
1945.10.27
申请人
LE MATERIEL TELEPHONIQUE
发明人
CLARK TREVOR HAZARD
分类号
H02M1/20
主分类号
H02M1/20
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