I imagine that ever since the invention of shaving cream in a tube, people have been wanting a way to get the cream from the tube and onto their face. Preferable without getting soapy fingers, or accidentally squeezing out too much. Luckily George E Carlson¹ had a solution in the form of a rotary spreader.

Carlson wasn’t the only man with a solution, of course. The same year Carlson filed the application, C W Brynan patented a shaving cream spreader. And a few years later N Testi secured a patent for a dispensing tube.