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Voice frequency repeater
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Test set for strowger switches
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Device for tracing a telephone switch train
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Solid-state polarity tester for telephone equipment
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Device for busying a telephone switch
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Test means for telephone switching systems
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Intercept strapping bridge and contacts
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Soldering iron cage holder
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Circuit-restoring means for telephone equipment
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Test stand
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Hanger bracket for solder spools
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Switch-bank cleaning tool
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Switch-bank cleaning tool
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Quick-check test set for telephone central equipment
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