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发明名称
Distributeur d'appel.
摘要
申请公布号
CH275631(A)
申请公布日期
1951.05.31
申请号
CHD275631
申请日期
1947.09.16
申请人
COMPAGNIE GENERALE D'ELECTRICITE
发明人
D'ELECTRICITE COMPAGNIE GENERALE
分类号
H04M3/523
主分类号
H04M3/523
代理机构
代理人
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