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发明名称
Perfectionnement aux haut-parleurs à chambre de compression
摘要
申请公布号
FR1545641(A)
申请公布日期
1968.11.15
申请号
FR19670113917
申请日期
1967.07.11
申请人
发明人
CESATI MARIO
分类号
H04R1/30;H04R1/42
主分类号
H04R1/30
代理机构
代理人
主权项
地址
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