发明名称 |
Accurately tracking phonograph arm |
摘要 |
A phonograph tone arm cartridge rotating system that keeps the cartridge perpendicular to the record groove radius by pivoting it with a belt and pulley linkage that does not change length or tension during movement of the tone arm.
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申请公布号 |
US4497053(A) |
申请公布日期 |
1985.01.29 |
申请号 |
US19820366832 |
申请日期 |
1982.04.09 |
申请人 |
WOLFF, ANDREW M. |
发明人 |
WOLFF, ANDREW M. |
分类号 |
G11B3/38;(IPC1-7):G11B21/16 |
主分类号 |
G11B3/38 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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