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KR20030090953A
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An apparatus for converting channels of a frequency multi-channel system
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KR20030090391A
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An apparatus for transmitting/receiving light signals using a light-source diffusion of semiconductor laser
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KR20030090392A
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A transmitting/receiving apparatus by diffusion-modulating of a semiconductor laser
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KR20030089883A
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A settop box-embedded apparatus for recording of a realtime mobile security guard and for remote controlling
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KR20030089881A
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An apparatus for combining and dividing a conversion mode of a reflector wave-length of a light source, and a method thereof
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KR20030089882A
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A package sensor module for an optical device of a reflector, and a manufacturing method
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KR20020063990A
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A device for detecting call of the cell phone and wireless handsfree device using this
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KR20020028469A
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Engine oil check apparatus and method for car
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US4760415A
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Film advance device for surveillance cameras
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Method and apparatus for plasma spray coating
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Electrical plasma jet torch and electrode therefor
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Coating heat softened particles by projection in a plasma stream of Mach 1 to Mach 3 velocity
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Apparatus and method for plasma spraying
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Method and apparatus for effecting high-energy dynamic coating of substrates
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Plasma torch, and electrode means therefor
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Film drive,and cinematographic apparatus incorporating the same
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US3517861A
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Positive-feed powder hopper and method
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Method of making dies and molds
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Electric arc light source having undercut recessed anode
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US3551737A
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Gas vortex-stabilized radiation source and method,and additive-introduction means therefor
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