Patent Information Publication number: US390413 A Patent Title: Nikola Publication type: Grant Publication date: Oct 2, 1888 Filing date: Apr 10, 1888 Original Assignee: The…
On January 3, 1928 Nikola Tesla received a flying machine, which he called helicopter-plane. The helicopter-plane flies straight up from earth until safely high and…
Patent Information Publication number: US382279 A Patent Title: Electro…
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