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2020
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Invention
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Ground monitor with smart frequency selection. An apparatus for smart frequency selection in a gr... |
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2018
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Invention
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Phase operation indicator. An apparatus for phase operation indication includes a phase filter th... |
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2016
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Invention
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Multiple frequency tone monitor. An apparatus for monitoring ground current includes a signal gen... |
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2015
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Invention
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Multi-frequency ground monitor current sensing. An apparatus includes a signal generation module ... |
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Invention
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Frequency hopping ground monitor current sensing. An apparatus includes a signal generation modul... |
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Invention
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Multi-frequency ground monitor current sensing without a dc component. An apparatus includes a si... |
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Invention
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Electric power sensor. An electric power sensor includes a sensor pad and an electric terminal. T... |
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Invention
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Arc-free capacitor trip device. An apparatus includes an energy storage module that receives powe... |
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2014
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Invention
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Multi-frequency ground monitor current sensing. A signal generation module injects a signal in a ... |
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Invention
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Watchdog circuit for ground monitor current sensing. A watchdog apparatus for monitoring ground c... |
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Invention
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Plug and receptacle assembly. According to some embodiments, an assembly includes at least one of... |
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2013
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Invention
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Ground monitor current sensing. A ground monitor apparatus for monitoring ground current includes... |
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Invention
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Ground monitor circuit protection apparatus. An apparatus includes a resistor assembly with resis... |
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Invention
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Ground monitor accessory connection. An apparatus includes an accessory module for a ground monit... |
