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Cable continuity testor including a sequential state machine
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Electrical shock hazard detection system with station scanning and indicating means
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Differential amplifier sliding reference
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Test apparatus for locating shorts during assembly of electrical buses
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Methods of investigating ground faults particularly on induction furnaces
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Portable automatic multiple test system for multi-pair cables
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Multi-wire cable continuity and short tester
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Insulation continuity tester including a grounded detector resistance and grounded voltage source
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Network tester employing latched test switching units
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Self-protecting power bus testing system
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Central coupler for a centralized monitor system for motor vehicles
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Induction furnace fault locator
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Electronic scanpoint matrix having means for detecting electrical failures therein
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Audible alarm-wire identifier
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