ALEXANDRIA, Va., Aug. 12 -- United States Patent no. 12,704,813, issued on Aug. 11, was assigned to ROLEX SA (Geneva).
"Timepiece calendar system" was invented by Christian Fleury (Geneva).
According to the abstract* released by the U.S. Patent & Trademark Office: "The timepiece calendar system (200) includes a date mobile (4) which is displaceable step by step relative to a frame (199), a first drive finger (21) for driving the date mobile (4). a first tooth (51) for driving the date mobile (4), the first tooth (51) being mounted on the date mobile (4) so as to be displaceable between a deactivated, or retracted, position and an activated, or drive, position, an activation system (6, 7) for activating the first tooth (51); the first driv...