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发明名称
Multiplekstelefon- og Multiplekstelegrafsystem.
摘要
申请公布号
DK54068(C)
申请公布日期
1937.12.27
申请号
DKD54068
申请日期
1936.01.14
申请人
JOSEPH ARMAND GIVELET;WILLIAM ARTHUR LOTH
发明人
JOSEPH ARMAND GIVELET;WILLIAM ARTHUR LOTH
分类号
主分类号
代理机构
代理人
主权项
地址
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