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Ningbo, CN
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Patents Grants
last 30 patents
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Patent Grant
Door closer
Patent number
12,180,772
Issue date
Dec 31, 2024
NINGBO PENTAGON DAMPER CORPORATION
Mingliang Lai
E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
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Patent Grant
Positionable hidden hydraulic hinge
Patent number
11,215,001
Issue date
Jan 4, 2022
NINGBO PENTAGON DAMPER CO., LTD
Fuyong Cai
E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Patents Applications
last 30 patents
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Patent Application
DOOR CLOSER
Publication number
20230184017
Publication date
Jun 15, 2023
NINGBO PENTAGON DAMPER CORPORATION
Mingliang LAI
E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
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Patent Application
POSITIONABLE HIDDEN HYDRAULIC HINGE
Publication number
20200087966
Publication date
Mar 19, 2020
NINGBO PENTAGON DAMPER CO., LTD
Fuyong CAI
E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
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