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CN112289151A
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Electric device for analyzing and applying control monitoring circuit of electric locomotive for teaching
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CN112272275A
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A safety record equipment in school for university's management
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CN112285208A
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Railway track flaw detection device and flaw detection method thereof
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CN112289134A
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Marketing panel for outdoor teaching
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CN112242772A
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Heat dissipation device for motor
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CN112278005A
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Rail stopper for railway locomotive
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CN112195919A
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Pouring device for building construction
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CN112277996A
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Obstacle removing equipment for locomotive head of railway locomotive
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CN112260705A
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Subway construction thing networking signal anti-interference transmission system
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CN112148077A
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Record at any time contrast board of english translation usefulness
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CN112149430A
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Pen-touch retractable English translation pen
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CN112273862A
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A supplementary drawing equipment for indoor decoration
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CN112258890A
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Parking space monitoring method of parking lot based on parking space monitoring sensor
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CN112258889A
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Parking lot parking space monitoring system based on parking space monitoring sensor
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CN112227238A
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Chinese display reminding method for road surface at night
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CN112211126A
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Chinese-based night road surface display reminding system
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CN112187099A
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Diagnosis room information display system adopting corridor ground self-power generation
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CN112263219A
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Test display device for psychology experiments
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CN112270899A
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Information-based propaganda equipment for vocational education cultivation
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CN112270866A
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Music score reading board for music teaching
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