Yongbo Zhang

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Hunan Province, CN

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Patents Grantslast 30 patents

Information Patent Grant
Conveyor band drive system
- Patent number 9,637,351
- Issue date May 2, 2017
- Otis Elevator Company
- Du Dai
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL

Patents Applicationslast 30 patents

Information Patent Application
CONVEYOR BAND DRIVE SYSTEM
- Publication number 20160167929
- Publication date Jun 16, 2016
- Otis Elevator Company
- Du Dai
- B66 - HOISTING LIFTING HAULING