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Paper package for preventing folded angle
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Air circulation system for fish and plants
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Antitheft alarm device for car
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Auxiliary eye drop mechanism
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Body-building weight loss backpack
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Novel clock
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Keyboard with changeable key mapping
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Moving mechanism of furniture
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Novel washing machine
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Computer chair capable of correcting posture
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Novel desk
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Stretchable vehicle mudguard
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Simple eyedrop bottle
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Novel universal wire-drawing board
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Novel blackboard eraser
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Water-saving device of water heater
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Computer keyboard cleaning structure
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Device for picking up coins
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Warming shoes
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Fabric replaceable umbrella
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