| 发明名称 |
OPTICAL ELEMENT FOR MAGNETIC RECORDING TAPE CARTRIDGES |
| 摘要 |
IMPROVED OPTICAL ELEMENT FOR MAGNETIC RECORDING TAPE CARTRIDGES A curved reflective surface directs light through a transparent portion of the tape of a belt-driven magnetic recording tape cartridge. PFC02/45171-1A.28
|
| 申请公布号 |
CA2057484(A1) |
申请公布日期 |
1992.08.14 |
| 申请号 |
CA19912057484 |
申请日期 |
1991.12.17 |
| 申请人 |
MINNESOTA MINING AND MANUFACTURING COMPANY |
发明人 |
ALEXANDER, JERRY L. |
| 分类号 |
G11B15/07;G11B15/08;G11B23/087;G11B23/30;(IPC1-7):G11B23/34 |
主分类号 |
G11B15/07 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
|
| 地址 |
|
