Who Invented the Telephone?
Who Invented the Telephone? Credit for the invention of the electric telephone is frequently disputed, and new controversies over the issue
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Patent
Did Thomas Edison Really Invent the Light Bulb?
Did Thomas Edison Really Invent the Light Bulb? Thomas Edison didn’t invent the light bulb, but rather, he improved upon a fifty-year-old
Who Invented Photostat or the Photocopier?
Who Invented Photostat or the Photocopier? In 1937, an American law student Chester Carlson invented a copying process based on electrostati
When Was the Automobile Invented?
The first self propelled “automobile” was built in 1796 by a French army officer named Nicolas Joseph Cugnot. It was a cumbersome, three-whe