Key rings were invented in 1922 by a man called G Herluf Johnson, the actual ring part was invented by a juggler from Russia in the 1830's.
The key chain or key ring, was invented in Oregon in 1922 by G. Herluf Johnson. Key chains come in a huge assortment of different designs and almost everyone own at least one or two.
It looks like Jim Ward invented circa 1975.
The O-ring was invented by Niels Christensen (1865-1952); a Danish-American inventor.
A key ring maybe?
yes
The spring ring was first patented in 1900.
The Allen key, or hex key, was invented in 1910. It was invented by William G. Allen, but first commercialized by P. L. Robertson.
yes indeed! I now use a key ring change purse which I keep the key in.
sherman hallof
JiaJia almighty
key ring