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Chengyu Zheng
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Nanjing, CN
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Patents Grants
last 30 patents
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Patent Grant
Power tool
Patent number
11,919,136
Issue date
Mar 5, 2024
Nanjing Chevron Industry Co., Ltd.
Chengyu Zheng
B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
Patents Applications
last 30 patents
Information
Patent Application
RATCHET TOOL
Publication number
20240278392
Publication date
Aug 22, 2024
Nanjing Chervon Industry Co., Ltd.
Hengyong Hu
B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
Information
Patent Application
NAIL GUN
Publication number
20240246211
Publication date
Jul 25, 2024
Nanjing Chervon Industry Co., Ltd.
Junliu Zhang
B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
Information
Patent Application
POWER TOOL
Publication number
20220032440
Publication date
Feb 3, 2022
Nanjing Chervon Industry Co., Ltd.
Chengyu Zheng
B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS