The big wheel was invented in 1969 , here's a link http://www.retroland.com/pages/retropedia/toys/item/2409/
In 1975, the laser printer and the first digital camera were invented. That was the year the push-through tab on drink cans was invented.
it was introduced in the year 1975 and invented byMITS Altair
1969
In the year 1975, first prepaid phone cards, telephone cards or calling card were invented by SIDA Company .
Are you talking about the green big-wheel type kid's toy? If that's what you are asking about, I know that it was before 1975.
Sony
1975
1975
It is believed that the wheel and axle were invented around 4000 B.C. There is no way to tell exactly which year they were invented, but they do show up in carvings from that era.
1975
1975
The wheel was revolutionary. Today, almost everything uses a wheel. No one knows why the wheel was invented, but I know that in Mesopotopia, in the year 3500BC, someone invented it and used it as what we call the "potter's wheel". Others believe that cave-men invented it before that; in the stone age. sumerians invented the wheel and used it for vehicals,sailboats,mechines,and pottery bowls.