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Changes in telecommunication By Sophie. Telephone facts The telephone was invented by Alexander Graham Bell. The telephone was invented in the Another. - ppt download
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![Changes in telecommunication By Sophie. Telephone facts The telephone was invented by Alexander Graham Bell. The telephone was invented in the Another. - ppt download Changes in telecommunication By Sophie. Telephone facts The telephone was invented by Alexander Graham Bell. The telephone was invented in the Another. - ppt download](https://images.slideplayer.com/5/1486156/slides/slide_2.jpg)
Changes in telecommunication By Sophie. Telephone facts The telephone was invented by Alexander Graham Bell. The telephone was invented in the Another. - ppt download
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