Qing Liu

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Xi'an, CN

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Patents Applicationslast 30 patents

Information Patent Application
BICYCLE REAR-WHEEL DRIVE MECHANISM
- Publication number 20240351374
- Publication date Oct 24, 2024
- Dongguan Jingtong Machinery Technology Co., Ltd.
- Quanxi Liu
- B60 - VEHICLES IN GENERAL
Information Patent Application
KIND OF BENDING BOLT TYPE ANTI-LOOSENING NUT
- Publication number 20240191744
- Publication date Jun 13, 2024
- Dongguan Jingtong Machinery Technology Co., Ltd.
- Qing Liu
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...