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经营范围
发明名称
Sonnerie électrique.
摘要
申请公布号
CH234893(A)
申请公布日期
1944.10.31
申请号
CHD234893
申请日期
1941.11.17
申请人
BELL TELEPHONE MANUFACTURING COMPANY, SOCIETE ANONYME
发明人
BELL TELEPHONE MANUFACTURING COMPANY, SOCIETE ANONYME
分类号
G10K1/064
主分类号
G10K1/064
代理机构
代理人
主权项
地址
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