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发明名称
Perfectionnements aux discriminateurs
摘要
申请公布号
FR1137595(A)
申请公布日期
1957.05.31
申请号
FRD1137595
申请日期
1955.10.05
申请人
COMPAGNIE FRANCAISE THOMSON-HOUSTON
发明人
分类号
H01C7/118;H03D3/32
主分类号
H01C7/118
代理机构
代理人
主权项
地址
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