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Gas pressure regulator
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Patent number 11,668,406
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Issue date Jun 6, 2023
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Ningbo Wanan Co., Ltd.
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Feng Zhang
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Plug valve for gas stove
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Patent number 8,485,217
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Issue date Jul 16, 2013
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Ningbo Wanan Co., Ltd.
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Feng Zhang
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Gas valve control device
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Patent number 8,272,400
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Issue date Sep 25, 2012
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Ningbo Wanan Co., Ltd.
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Feng Zhang
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F24 - HEATING RANGES VENTILATING
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78423569 - A
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Serial number 78423569
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Registration number 2964235
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Filing date May 24, 2004
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NINGBO WANAN CO., LTD
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6 - Common metals and their alloys