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发明名称
Système électrodynamique, spécialement pour hauts-parleurs
摘要
申请公布号
FR892396(A)
申请公布日期
1944.04.05
申请号
FRD892396
申请日期
1943.03.16
申请人
发明人
CESATI MARIO
分类号
H04R9/02
主分类号
H04R9/02
代理机构
代理人
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