Sure, this is bad news if you happen to be an American toy manufacturer.

She sold that idea to a major toy manufacturer in 1958 for $5,000.

"Toy manufacturers can make these products at a price parents will tolerate even if kids break them."

Marx was the largest toy manufacturer in the world by the 1950s.

"I spent three years in sales with a toy manufacturer and the work was not very satisfying," he said.

Toy manufacturers say that swings are universal in other ways.

"We have had a long, cordial and close relationship with the toy manufacturers," he said.

We are one of the largest black-owned toy manufacturers in America.

What the toy manufacturers can't see, they ask for.

Toy manufacturers also have to think ahead in order to cater for the numbers of school children and babies.