It didn't grumble, and it didn't keep on asking Dorcas why he hadn't got around to inventing radio yet.

There was a dispute regarding who invented superheterodyne radio.

Guglielmo Marconi in Italy made radio into a practical tool, and is sometimes said to have invented radio.

You will perhaps recall that, a little less than ninety years ago-" "-you invented radio, of course.

I'd rather be in my workshop, trying to invent radio.

If there were intelligent life forms, they had yet to invent radio.

So until they invent faster-than-light radio, we're not going to know what's happening on Terra until a couple of years after it's happened.

You couldn't invent radio until you'd first invented the hundred allied technical discoveries that went into it.

It was Tesla, not Marconi, who invented radio.

Guglielmo Marconi did not invent radio, but only modernized it for public broadcasting and communication.