If you think the selfie stick is a weird invention of the 21st century, have a look at these. Here are some of the strangest patent applications ever filed with the US Patent & Trademark Office from the late 1800s to the earlier 1900s. These inventors were dreaming of rocking bathtubs, sexual armour & a one-wheeled vehicle – umbrella included! These designs also show the obsessions and desires of the time. Like the Smoke excluding mask, dangers from fire was a growing hazard. Or the Life indicator for coffins, many people had a fear of being buried alive.