| 发明名称 |
VARIABLE RELUCTANCE TRANSDUCER |
| 摘要 |
A variable-reluctance transducer for sensing control indicia that are directly formed on a type carrier. The transducer contains an axial pole and a concentric cylindrical pole, in which are located a coil and a cylindrically-shaped magnet.
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| 申请公布号 |
US3875545(A) |
申请公布日期 |
1975.04.01 |
| 申请号 |
US19690857506 |
申请日期 |
1969.09.12 |
| 申请人 |
NORTEC COMPUTER DEVICES INC. |
发明人 |
CURTISS, ROBERT H. |
| 分类号 |
B41J1/20;(IPC1-7):H01F21/00 |
主分类号 |
B41J1/20 |
| 代理机构 |
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