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last 30 patents
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Patent Grant
Induced drilling method for inertia constrained implicated motion a...
Patent number
11,306,537
Issue date
Apr 19, 2022
XI'AN MANYUAN ELECTROMECHANICAL EQUIPMENT CO., LTD.
Liang Tao
E21 - EARTH DRILLING MINING
Patents Applications
last 30 patents
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Patent Application
INDUCED DRILLING METHOD FOR INERTIA CONSTRAINED IMPLICATED MOTION A...
Publication number
20210079728
Publication date
Mar 18, 2021
XI'AN MANYUAN ELECTROMECHANICAL EQUIPMENT CO.LTD.
Liang TAO
E21 - EARTH DRILLING MINING