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发明名称
Dispositif de conduction mécanique et de traductions électriques de sonorités et leurs applications
摘要
申请公布号
FR1007362(A)
申请公布日期
1952.05.05
申请号
FRD1007362
申请日期
1949.12.21
申请人
发明人
BLANCHARD FRANCOIS-JULES-MARCE
分类号
H04R23/00
主分类号
H04R23/00
代理机构
代理人
主权项
地址
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