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Patents Grants
last 30 patents
Information
Patent Grant
Tool and method for replacing escalator drive spindle
Patent number
11,590,615
Issue date
Feb 28, 2023
Inventio AG
Tao Huang
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Super large tonnage detachable hook
Patent number
11,208,300
Issue date
Dec 28, 2021
Yuemin Wang
B66 - HOISTING LIFTING HAULING
Patents Applications
last 30 patents
Information
Patent Application
TOOL AND METHOD FOR REPLACING ESCALATOR DRIVE SPINDLE
Publication number
20220048144
Publication date
Feb 17, 2022
INVENTIO AG
Tao Huang
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Application
A Super Large Tonnage Detachable Hook
Publication number
20200307961
Publication date
Oct 1, 2020
Yuemin Wang
B66 - HOISTING LIFTING HAULING