According to Securities Star, data from the Tianyancha APP shows that Great Wall Motors (601633) has recently obtained a utility model patent authorization. The patent is titled 'A Universal Joint ...

Early ideas of universal joints (or U-joints) have dated back thousands of years and seem to originate from multiple sources. However, about a century ago, a young engineering graduate, Clarence W.

Lego’s Technic line features all kinds of mechanical devices, from cogs to gears to chains and even pneumatic components. However, the vast majority of these components are made out of plastic and are ...