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经营范围
发明名称
Perfectionnement aux appareils dérouleurs de film pour enregistrement sonore
摘要
申请公布号
FR736308(A)
申请公布日期
1932.11.22
申请号
FRD736308
申请日期
1931.08.24
申请人
发明人
DEBRIE ANDRE-LEON-VICTOR-CL
分类号
G11B15/26
主分类号
G11B15/26
代理机构
代理人
主权项
地址
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