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Category:Centrex telephone systems

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A rotary Bakelite phone developed in 1947 - The standard phone that uses Centrex technology - Image by Holger Ellgaard
A rotary Bakelite phone developed in 1947 - The standard phone that uses Centrex technology - Image by Holger Ellgaard

Pages in category "Centrex telephone systems"

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Media in category "Centrex telephone systems"

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