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发明名称
Dispositif téléphonique d'enregistrement et de reproduction
摘要
申请公布号
FR781600(A)
申请公布日期
1935.05.18
申请号
FRD781600
申请日期
1934.11.20
申请人
发明人
JAEGER OTTO
分类号
H04M1/64;H04M1/65;H04M3/42;H04M11/10
主分类号
H04M1/64
代理机构
代理人
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地址
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