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United States Utility Patents
6,724,130 - 6,724,139

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NumberTitle
6,724,130 Membrane position control
6,724,131 Night vision device and method
6,724,132 Spark plug for an engine for a cogeneration system
6,724,133 Spark plug with nickel alloy electrode base material
6,724,134 Surface discharge lamp and system
6,724,135 Reflector lamp having a metallic holder
6,724,136 Shadow mask for color cathode-ray tube
6,724,137 Tension mask frame assembly for color cathode ray tube
6,724,138 Cathode ray tube with shadow mask frame
6,724,139 Cathode ray tube having improved indirectly heated cathode



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