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1
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Telephone companies Employees -- See Also the narrower term Telephone operators
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1
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2
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Telephone companies -- Employees. / https://id.loc.gov/authorities/subjects/sh85133377
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1961
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3
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Telephone companies -- Employees -- Labor unions -- United States -- History. / https://id.loc.gov/authorities/subjects/sh85136709 https://id.loc.gov/authorities/names/n78095330-781 https://id.loc.gov/authorities/subjects/sh99005024 : Schacht, John N.,
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1985
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1
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