Phone

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by mojitoo
Last updated 7 years ago

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Discipline:
Science
Subject:
Technology

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Phone

1876

The first phone call over the ocean in 1956The first phone call over the pacific in 1964

1830

Grahambell invented telephone

Everybody had to use telgraph to send mess.

1870

Alessandra Lolita Oswaldo

thomas edison developed new phone with two part for listen&speak

First phone-book was published in 1878

PHONES

1877

GSM system opened for use in 1991 and in 1994 turkcell has established in turkey


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