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HANGZHOU DONGHUA CHAIN GROUP CO., LTD
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HANGZHOU, CN
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Patents Grants
last 30 patents
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Patent Grant
Chain intelligent pre-tensioning and chain length detection method...
Patent number
11,079,216
Issue date
Aug 3, 2021
HANGZHOU DONGHUA CHAIN GROUP CO., LTD.
Bin Ye
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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Patents Applications
last 30 patents
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Patent Application
CHAIN INTELLIGENT PRETENSION AND CHAIN LENGTH DETECTION METHOD AND...
Publication number
20210041224
Publication date
Feb 11, 2021
HANGZHOU DONGHUA CHAIN GROUP CO.,LTD.
Bin YE
G01 - MEASURING TESTING
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Trademark
last 30 trademarks
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Trademark
86881664 - DH-X3
Serial number
86881664
Registration number
5031385
Filing date
Jan 21, 2016
HANGZHOU DONGHUA CHAIN GROUP CO., LTD.
7 - Machines and machine tools
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Trademark
86881674 - DONGHUAX3
Serial number
86881674
Registration number
5031388
Filing date
Jan 21, 2016
HANGZHOU DONGHUA CHAIN GROUP CO., LTD.
7 - Machines and machine tools
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Trademark
86881671 - DH-X3
Serial number
86881671
Filing date
Jan 21, 2016
HANGZHOU DONGHUA CHAIN GROUP CO., LTD.
12 - Vehicles
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Trademark
86881675 - DONGHUAX3
Serial number
86881675
Filing date
Jan 21, 2016
HANGZHOU DONGHUA CHAIN GROUP CO., LTD.
12 - Vehicles