Who invented the looping wire connected to telephone set?

Question

Who invented the looping wire connected to telephone set?

Answer 1

It's called a spring cord.  

In 1938 retractile, spring, or spiral cords were introduced into the Bell System. A single cotton bundle containing the handset's four wires were fashioned into a spiral. This reduced the twisting and curling of conventional flat or braided cords. Spiral cords were popular immediately. AT&T's Events in Telecommunication History [ETH] reported that introduction began in April, with Western Electric providing 6,000 cords by November. Still, even with W.E. then producing 1,000 cords a week, the cords could not be kept in stock.

And for the record, I invented the Cordless phone cord.