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经营范围
发明名称
High fidelity loudspeaker
摘要
申请公布号
US2897292(A)
申请公布日期
1959.07.28
申请号
US19560579354
申请日期
1956.04.19
申请人
BOSCH FRANCOIS JOSEPH GERARD V
发明人
FRANCOIS JOSEPH GERARD VAN DEN BOSCH
分类号
H04R1/28
主分类号
H04R1/28
代理机构
代理人
主权项
地址
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