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经营范围
发明名称
Dispositif d'enregistrement d'impulsions.
摘要
申请公布号
CH213352(A)
申请公布日期
1941.01.31
申请号
CHD213352
申请日期
1938.02.12
申请人
BELL TELEPHONE MANUFACTURING COMPANY, SOCIETE ANONYME
发明人
BELL TELEPHONE MANUFACTURING COMPANY, SOCIETE ANONYME
分类号
H04Q3/42
主分类号
H04Q3/42
代理机构
代理人
主权项
地址
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