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1900 - 1910 Invented and perfected the steel alkaline storage battery and made it a commercial success.
1902-1903 Worked on improving the Edison Primary Battery. Continued to invent improvements to his phonograph - his favorite invention - and associated cylinders.
Wiki User
∙ 12y ago
Wiki User
∙ 13y agoit was invented in1798
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What year did Thomas Edison invent the telegraph?
1856
What year was the light bulb invented by Thomas Edison?
The light bulb was created in 1882 by Thomas Edison.
What year did Thomas Edison create the carbon microphone?
Thomas Edison invented the carbon microphone in 1877
What year was phonograph invented in?
The phonograph was invented in 1878. Thomas Edison invented it.
Who year was the phonograph invented in?
The phonograph was invented in 1877 by Thomas Alva Edison.
What year was it when Thomas Edison invented the light bulb?
1879
Which year was the phonograph?
The phonograph was invented by Thomas Edison in 1877.
The year Thomas alva Edison made the light bulb?
Thomas Alva Edison invented the light bulb in 1877.
What year did Thomas Edison improve telegraph improvements?
He did it in the 1880s because the sound quality of the first model was quite poor.
When did thomas Edison invent the electric safety miners lamp?
Edison invented the minor's safety lamp in the year 1914.
What year did Thomas Edison invent the electric light?
He invented the electric light in 1880
What year did Thomas Edison invent the process of sound recording on a tin-wrapped cylinder?
The process sound recording on a tin wrapped cylinder was invented in 1877
