| 发明名称 |
APPARATUS FOR DETECTING THE PRESENCE AND LOCATION OF AT LEAST ONE OBJECT IN A FIELD |
| 摘要 |
An apparatus for detecting the presence of at least one object in a field having at least one through-beam detection device with at least one transmitter and at least one opposing detector to create a detection beam that overlaps the field.
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| 申请公布号 |
CA2247355(A1) |
申请公布日期 |
1997.09.12 |
| 申请号 |
CA19972247355 |
申请日期 |
1997.03.04 |
| 申请人 |
LASERSCORE, INC. |
发明人 |
SIMMONS, GEORGE R.;DOUGHERTY, EDMOND J. |
| 分类号 |
F41J5/02;(IPC1-7):F41J5/02 |
主分类号 |
F41J5/02 |
| 代理机构 |
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