On February 25, 1902 John Holland (an Irish engineer) was granted a patent for a submarine. Holland developed the first submarine to be formally commissioned…
On February 23, 1897, Nikola Tesla received a patent for electrical condensers and coils. The features of the patent: 1. Improvements of condensers, transformers, self-induction…
On February 20, 1872, Luther Crowell patented a machine that manufactured the square-bottom paper grocery bags. The square-bottom paper grocery bag has been around well…
On February 19, 1878, Thomas Edison received a patent for the phonograph. The photo shows Thomas Edison with his patented phonograph.The device could mechanically record…
On February 18, 1879 Auguste Bartholdi was granted a design patent for the Statue of Liberty. Frédéric Auguste Bartholdi was a French sculptor. The work…
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