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发明名称
Phonograph cartridge
摘要
申请公布号
US2852619(A)
申请公布日期
1958.09.16
申请号
US19550536114
申请日期
1955.09.23
申请人
ELECTRO-VOICE, INCORPORATED
发明人
WOOD JOHN F.
分类号
H04R17/06
主分类号
H04R17/06
代理机构
代理人
主权项
地址
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