1893 - Thomas Edison received two U.S. patents. The first was for a "Cut Out for Incandescent Electric Lamps" and another for a "Stop Device" (No. 491,992-3). Also No. 492,150 for "Process of Coating Conductors for Incandescent Lamps."
... nominative, vocative, accusative, instrumental[?], dative, ablative, genitive, and locative. It has over ten noun declensions.
Sanskrit has ten classes of verbs ...