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He Jin
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Guangzhou, CN
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last 30 patents
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Patent Grant
Intelligent hoisting method for beam segments used in bridgedeck cr...
Patent number
12,214,999
Issue date
Feb 4, 2025
POLY CHANGDA ENGINEERING CO., LTD.
Yuxian Wu
B66 - HOISTING LIFTING HAULING
Patents Applications
last 30 patents
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Patent Application
BRIDGE SLIDING DEVICE AND A BRIDGE CONSTRUCTION SYSTEM
Publication number
20250137208
Publication date
May 1, 2025
POLY CHANGDA ENGINEERING CO., LTD.
HE JIN
E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES