"We're a pretty clever invention, miss, and you can't get on without us," he answered, with his nose in the air.

It's quite a clever invention, which has streamlined our mass dredging operations considerably.

It was the clever invention of a diabolical mind.

There are no clever inventions, because most inventions bring more unhappiness than pleasure.

If so, the story was a clever invention on his part, well designed and thought out.

Maybe this story also was only a clever invention.

What you would have would not be a clever invention.

Even if you're not a serious d-i-yer, you're bound to be aware of this clever invention.

It is a clever invention, but it shouldn't fool your own instruments.

He's interested in complicated figures and clever inventions.