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Method for joining screen windows and window frames and a security grilles
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Window invasion detection device using complex sensor and method
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Parking and event information verification system using the smart phone app
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Window forcible removal prevention device
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Security window coupled metal net by using metallic member
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A character doll having multipurpose smart watching device for providing secuity function and missing child prevention function and smart watching system
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Child protection pest net safety system using pest net touch-sensitive alarm system
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insect net security system to prevent intrusion and theft by using impedance change
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insect net security system to prevent intrusion and theft
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A multipurpose smart watching system for providing security function and missing child prevention function
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Insulation and airtight performance and drainage performance superior double watertight windows
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Image printing system and image printing method for printing an image on metal net
