When did Anna Baldwin made the cow milking machine?

Anna Baldwin did not invent the cow milking machine.

The first commercially successful milking machine was invented by Anna Baldwin in 1878, in New York, USA.

She designed and built a machine that used a vacuum to draw milk from the cow's udder, making the milking process much faster and easier than the traditional method.

Her invention had a huge impact on the dairy industry and helped to improve the efficiency of milk production.