the light bulb!
The transatlantic cable was completed.
No one knows
The printing press was invented by Johannes Gutenberg in 1436, and his project was completed in 1440.
No, you can patent an idea and call it intellectual property, an unexamined invention is much the same except you run the risk of someone beating you to the patenting office.
No, . the Germans had U-boats before WWI
The invention of the Dune Buggy is credited to Bruce Meyers, but the first fully functional dune buggy was invented and completed in 1958 by Peter Brehm.
Before filing for a patent, individuals should consider common questions such as: Is the invention truly novel and non-obvious? Can the invention be easily replicated by others? Is the invention commercially viable? Have all necessary research and documentation been completed? Is it worth the time and cost to pursue a patent?
Nikola Tesla's first invention, an improved telephone repeater, was developed during his early career working for the Central Telegraph Office in Budapest. It is believed that he completed this invention within a couple of years after starting his employment there.
Finally completed in 1694 the Leibnitz calculator can add,subtract,multiply, and divide numbers. The stepped drum principle of Gottfried Leibnitz's invention survived for 300 years.
Louis Daguerre and Joseph Nicéphore Niépce (who was Daguerre's partner, but died before their invention was completed) invented the first practical photographic method, which was named the daguerreotype, in 1839.
Johannes Gutenberg is a German goldsmith who is best known for his invention of the printing press, a machine that revolutionized the literature industry. He completed this printing press in the year of 1440.
Roger M. Brewster submitted the original U.S. patent for a coin sorting machine. The invention was believed to have been completed around the year of 1909.