This is a book about a few inventors.
By: David Eason
Albert Einstein Eli Whitney George Crum
It helps us see better at night.
Lewis Latimer's Electric Lamp
Garrett A. Morgan
It helps us not get any kind of gas in our lungs.
Gas Mask By Garrett A. Morgan
Dr. Charles R. Drew
Bag of Blood That Was Dr.Charles Drew's Idea
A blood bank helps anyone that needs blood.