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CN109441405A
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A kind of motor adjusting device of pumping unit
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CN109356544A
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A kind of sealing theft protection installation of production wellhead
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CN109102740A
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A kind of difficult math question parsing display structure
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CN109102741A
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A kind of mathematics teaching aid being convenient for carrying
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CN109249357A
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A kind of electric automatization processing platform
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CN109226029A
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A kind of electric automatization cleaning device
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CN109167558A
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A kind of new energy solar panels supporting adn fixing device
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CN109131648A
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A kind of anti-theft alarm for motor vehicle
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CN109130826A
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New-energy automobile charging accumulator placing box
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CN109249832A
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A kind of new-energy automobile charging unit
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CN109174295A
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A kind of crushing device for chemical fertilizer production
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CN109253616A
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A kind of chemical fertilizer production drying device
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CN109224921A
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A kind of raw material blending device for chemical fertilizer production
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CN109216625A
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A kind of new energy battery apparatus
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CN109187110A
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A kind of chemical fertilizer granule sampler
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