| 发明名称 |
ARRANGEMENT IN DISK-FORMED BODY, IN PARTICULAR IN A RECORD |
| 摘要 |
A phonograph record having a stepped inner annular area terminating in a central hole. A plurality of radial slits extended from the central hole through the entire extent of the inner annular area and recesses are provided to facilitate axial bending of the stepped landings.
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| 申请公布号 |
US3682487(A) |
申请公布日期 |
1972.08.08 |
| 申请号 |
USD3682487 |
申请日期 |
1971.01.06 |
| 申请人 |
HANS GUSTAV ERIKSSON |
发明人 |
HANS GUSTAV ERIKSSON |
| 分类号 |
G11B23/00;(IPC1-7):G11B3/62 |
主分类号 |
G11B23/00 |
| 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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