On Feb 18, 1896 he patented a razor stropping device (for sharpening barbers' razors).
P. Johnson refers to Philip Johnson, an African American inventor known for his work in creating the first successful automatic elevator door. His invention significantly improved elevator safety and efficiency. Johnson's contributions are part of a broader legacy of innovation by African American inventors who have made important advancements in various fields.
Yes, Henry Sampson is the inventor of the cellphone.
Thomas Jennings
Lonnie Johnson
Benjamin Banneker
Sarah Boone is credited with the invention and the patent for the ironing board. She was an African American inventor and received the patent in 1892.
GT Sampson was an African American inventor. Sampson is best known for his invention of the clothes dryer in 1892.
Yes, Sarah Mather, an African American, is credited as the inventor of the submarine telescope. She patented this invention in 1845, which allowed for underwater exploration and observation without the need to surface.
The jack was invented by an African American inventor named Charles M. Banks on September 2, 1930. The registered patent number for the jack is 1,774,693.
P. Johnson refers to Philip Johnson, an African American inventor known for his work in creating the first successful automatic elevator door. His invention significantly improved elevator safety and efficiency. Johnson's contributions are part of a broader legacy of innovation by African American inventors who have made important advancements in various fields.
Sarah Boone was an African American inventor from the 19th century who patented an improved ironing board in 1892. While there may not be a detailed biography available, her invention is a significant contribution to household innovation.
Thomas Jennings received a patent for his invention of the dry cleaner in 1821. His invention was called "dry scouring" and his patenting was important because it represented the first patent received by an African American.
Madeline Turner was a African American inventor. Madeline invented the fruit press. The fruit press was an invention to help juice fruit better.
dr martin cooper is an African American inventor because he was the first to invent the stove
No, he was an American inventor/businessman.
An African American Inventor.
an african american inventor