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发明名称
Telephonograph mit Antwortgeber.
摘要
申请公布号
CH294519(A)
申请公布日期
1953.11.15
申请号
CHD294519
申请日期
1950.09.23
申请人
PROMUNDO TREUUNTERNEHMEN
发明人
TREUUNTERNEHMEN PROMUNDO
分类号
H04M1/65
主分类号
H04M1/65
代理机构
代理人
主权项
地址
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