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发明名称
Electro-mechanical pick-up cartridge with reversible stylus mounting
摘要
申请公布号
US2742530(A)
申请公布日期
1956.04.17
申请号
US19520305970
申请日期
1952.08.23
申请人
THE ASTATIC CORPORATION
发明人
MAYER ROBERT L.
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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