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YINCHUAN, CN
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Patents Grants
last 30 patents
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Patent Grant
Device for activity test of extraction check valve
Patent number
11,162,612
Issue date
Nov 2, 2021
NINGXIA DANCHEN TECHNOLOGY CO., LTD
Jisheng Wang
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Solenoid valve for activity test of extraction check valve
Patent number
11,137,084
Issue date
Oct 5, 2021
NINGXIA DANCHEN TECHNOLOGY CO., LTD
Jisheng Wang
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Patents Applications
last 30 patents
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Patent Application
Device For Activity Test Of Extraction Check Valve
Publication number
20200326016
Publication date
Oct 15, 2020
Ningxia Danchen Technology Co., LTD.
Jisheng WANG
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Application
Solenoid Valve For Activity Test Of Extraction Check Valve
Publication number
20200326002
Publication date
Oct 15, 2020
Ningxia Danchen Technology Co., LTD.
Jisheng WANG
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...