Student attendance card punching device for smart campus
The utility model relates to the technical field of smart campus, and discloses a smart campus student attendance card punching device which comprises a protective shell, a motor I is fixedly connected to the inner bottom end of the protective shell, a threaded rod I is fixedly connected to the top...
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Main Authors | , , , , , , , , , , , , , |
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Format | Patent |
Language | Chinese English |
Published |
30.12.2022
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Subjects | |
Online Access | Get full text |
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