| 发明名称 |
OPTICAL MARK READING THAT USES A DISREGARD STATE AS PART OF AN UNAMBIGUOUS SYMBOLOGY OF MARKS TO FILL INTO RESPONSE BUBBLES |
| 摘要 |
Response bubbles on a scannable form are provided that allow a user to mark the bubbles in a manner that signifies that the user wishes to have a response disregarded.
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| 申请公布号 |
US2009242639(A1) |
申请公布日期 |
2009.10.01 |
| 申请号 |
US20090482949 |
申请日期 |
2009.06.11 |
| 申请人 |
GRAVIC, INC. |
发明人 |
HOLENSTEIN BRUCE D.;DAVISON OWEN C.;BERUTTI VICTOR F.;HOLENSTEIN PAUL J. |
| 分类号 |
G06K7/10;G06K17/00 |
主分类号 |
G06K7/10 |
| 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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