The same son also invented a machine to help mass production of this lure.

Congress had invented a wonderful new machine, with a flag and an army, but they didn't quite know how to work it.

For example, if someone invents a machine that does the work of five people, that's progress.

While in England, he invented a machine for the production of pins.

He therefore invented a huge machine for doing the mixing by mechanical means.

I asked them why they didn't invent a machine to speed up all the repetitive work.

He invented a fringe-trimming machine and made a good deal of money from it.

No one had invented such a machine so she built one herself.

The old man explains that he is inventing a machine which makes people invisible.