发明名称 |
METHOD FOR MONITORING AND MAINTAINING SUPPLY OF PUBLICATIONS |
摘要 |
A method for monitoring and maintaining the supply of publications in a display, using an optical depth measuring device in conjunction with a control device which has been preprogrammed with data relating to the specific publications and which can transmit a signal indicating that the publications in the display are runnin g low and need to be restocked.
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申请公布号 |
CA2304443(A1) |
申请公布日期 |
2001.10.07 |
申请号 |
CA20002304443 |
申请日期 |
2000.04.07 |
申请人 |
VASILAKOS, JOHN ANDREW;BARRETT, BRAD C. |
发明人 |
VASILAKOS, JOHN ANDREW;BARRETT, BRAD C. |
分类号 |
G01B11/02;(IPC1-7):G01B11/22 |
主分类号 |
G01B11/02 |
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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