The back hand spring was usually invented in the 1960's if u ask me
handsanitizer was invented in the year 1966 (this is the correct year i did a lot of research on it to be sure)
1568
1966
1568
spring 1905
the year 1858
1991
It was invented back in 2008.
yes
Niichi Matoba invented hand warmers. He is a Japanese inventor. He made this cool invention in the year of 1923.
2000 years back
1888