Ribbons Bows

What does the Traffic Signal , Gas Mask and Filament for Light Bulb all have in common ?

This came up in the trivia game and nobody knew the answer. So I ask the broad and vast community of the USA's knowledge at Yahoo Answers to come up with the right answer......10 points for the first one.....Steve Nash

They are all black Invention Myths....Inventions of African Americans that isn't true ..... Something that has become a staple of conversation over the years that people start to believe it.

Read below and you will understand.

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