2) Charles Grow invented a talking machine which had a wax turntable. Later in August
of 1877 T. Edison improved it by replacing a wax turntable by a tinfoil one.
3) Edison ordered to build an apparatus which he began experimenting with on August
12, 1877.
4) The telegraph was invented by Samuel F. В Morse in 1837. Thomas Edison invented
and produced many new items and improvements of the telegraph
5) Thomas Edison arid his assistants made a lot of inventions and improvements. Later in
1877 he organised an 'invention factory'.
6) Alexander Bell invented the telephone in 1876. One of Thomas Edison's first inventions
was an improvement on Alexander Beli's telephone
7) Over a yeai 1600 materials were tested by Thomas Edison when he was developing a
light bulb.
of 1877 T. Edison improved it by replacing a wax turntable by a tinfoil one.
3) Edison ordered to build an apparatus which he began experimenting with on August
12, 1877.
4) The telegraph was invented by Samuel F. В Morse in 1837. Thomas Edison invented
and produced many new items and improvements of the telegraph
5) Thomas Edison arid his assistants made a lot of inventions and improvements. Later in
1877 he organised an 'invention factory'.
6) Alexander Bell invented the telephone in 1876. One of Thomas Edison's first inventions
was an improvement on Alexander Beli's telephone
7) Over a yeai 1600 materials were tested by Thomas Edison when he was developing a
light bulb.