One invention that improved safety were automatic car couplers and railroad air brakes.
Garrett Morgan is credited with saving the lives of many people, particularly during a 1916 tunnel explosion in Cleveland, Ohio, where he used his gas mask invention to rescue trapped workers. He is estimated to have saved the lives of at least 20 individuals during this incident. His contributions to safety and public health through his inventions have had a lasting impact, but specific numbers on lives saved beyond this event are harder to quantify.
over 300 slaves were saved in the underground railroad, by harriet tubman.
the invention thata dr.charles richard drew made was really important for people because .he saved their lives by giving then blood that they needed
Sprinkler systems, fire extinguishers, adequate UNLOCKED exits.
millions of lives are saved by animal testing
The bifocals haved saved lives by letting people see clearly.
Bletchley Park boffins helped create the Bombe and then Colossus, the worlds first supercomputer, which sparked a makeshift boost in the war, and saved millions of lives.
lots and lots of lives have been saved by airbags. its indeed very cool.
Yes, this futuristic invention they call a "four wheeler" has saved many lives.
Tweleven.
yes
Yes.