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Welding filter
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Patent number D930912
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Issue date Sep 14, 2021
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NINGBO GEOSTAR PHOTOELECTRIC TECHNOLOGY CO., LTD.
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Zhaolin Yang
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D29 - Equipment for safety, protection, and rescue
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Helmet
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Patent number D873498
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Issue date Jan 21, 2020
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NINGBO GEOSTAR PHOTOELECTRIC TECHNOLOGY CO., LTD.
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Zhaolin Yang
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D29 - Equipment for safety, protection, and rescue
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Digital welding goggle
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Patent number D864284
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Issue date Oct 22, 2019
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NINGBO GEOSTAR PHOTOELECTRIC TECHNOLOGY CO., LTD.
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Zhaolin Yang
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D16 - Photography and optical equipment
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Welding helmet
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Patent number D788988
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Issue date Jun 6, 2017
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NINGBO GEOSTAR PHOTOELECTRIC TECHNOLOGY CO., LTD.
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Jianrong Zhou
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D29 - Equipment for safety, protection, and rescue
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Welding helmet
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Patent number D788989
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Issue date Jun 6, 2017
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NINGBO GEOSTAR PHOTOELECTRIC TECHNOLOGY CO., LTD.
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Jianrong Zhou
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D29 - Equipment for safety, protection, and rescue
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Weld cap
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Patent number D756569
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Issue date May 17, 2016
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NINGBO GEOSTAR PHOTOELECTRIC TECHNOLOGY CO., LTD.
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Zhaolin Yang
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D29 - Equipment for safety, protection, and rescue
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Weld cap
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Patent number D753345
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Issue date Apr 5, 2016
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NINGBO GEOSTAR PHOTOELECTRIC TECHNOLOGY CO., LTD.
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Zhaolin Yang
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D29 - Equipment for safety, protection, and rescue