发明名称 TOROIDAL ARMATURE STEREOPHONIC PICKUP
摘要 A phonograph pickup for the reproduction of stereophonic and/or monaural sound recordings which is of a balanced and magnetic electrical structure and wherein a single elastomeric damping member is employed to achieve a high degree of lateral compliance and torsional damping.
申请公布号 US3694586(A) 申请公布日期 1972.09.26
申请号 USD3694586 申请日期 1969.11.03
申请人 JOSEPH F. GRADO 发明人 JOSEPH F. GRADO
分类号 H04R11/08;H04R11/12;(IPC1-7):H04R11/12 主分类号 H04R11/08
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