George Westinghouse Jr. patented steam power brake devices in the US.
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William B. Purvis patented the electric switch on railways that would shut off the electric supply after carriages pass the contact device.
American inventor Eli Whitney was granted a patent for a ground-breaking new type of cotton gin.
The world's favorite paper joiner, the stapler was patented by C. H. Gould in England.
The Safety Hood, which would later become the gas mask, was patented by Garrett Morgan.
Amateur British chemist Sir James Jay invented invisible ink.
