He ZHANG

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Guangzhou, CN

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Patents Applicationslast 30 patents

Information Patent Application
MECHANICAL LOCK PASSWORD SETTING AND RESET STRUCTURE
- Publication number 20250034906
- Publication date Jan 30, 2025
- SHENZHEN HUIKAIDA TECHNOLOGY CO., LTD
- HE ZHANG
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Application
TWIST ON THE HAND TO REPLACE THE LOCK CORE STRUCTURE
- Publication number 20250034905
- Publication date Jan 30, 2025
- SHENZHEN HUIKAIDA TECHNOLOGY CO.,LTD
- HE ZHANG
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Application
Pet ladder that adjust the angle of the ramp
- Publication number 20240368942
- Publication date Nov 7, 2024
- SHENZHEN HUIKAIDA TECHNOLOGY CO., LTD
- He ZHANG
- E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS