Lloyd Ray was the first African American to receive a patent for improving the dustpan by attaching a short, wooden handle to a metal collection plate. He received the patent on August 3, 1897.
William Crookes invented cathode ray tubes.The earliest version of the CRT was invented by the German physicist Ferdinand Braun in 1897.
Cathode ray tube amusement device was created in 1947.
Dr Gustave Bucky is the original inventor of the x-Ray grid. He made this in 1913. He was born September 3, 1880.
the motorcycle, x-ray and more that i cant seem to find on this stupid website Rawr im mad.... :)
Foamed polystyrene, or Styrofoam, was discovered in 19541 by Ray McIntire. They rediscovered a method first discovered by Carl Munters.
Lloyd p. ray
Lloyd P. Ray invented the dustpan in 1897 when he was 22 years old. He was born in 1875, and his invention aimed to improve the efficiency of cleaning. The dustpan has since become a standard tool in households and workplaces.
The dustpan was invented by an American man named T.E. McNeill in 1858.
in August
Actually, there is some question about whether he actually invented it; some historians believe the dustpan had already been invented. But it is beyond dispute that Ray improved it. He added a long handle, so that so people could use the device more easily: they would be able to clean, without getting their hands dirty.
He invented the improved dust pan.
1996
The year that Ray Holt invented the processor was 1971
L. P. Ray invented a device with a metal plate attached to a wooden handle used to collect piles of swept dust or trash. This device is in common use today, and is known as a "dustpan".
it was invented in 1895
can you give me a brief review of lloyd ray?
Lloyd p ray was born in seattle,Washington