USPC 244/89

From Inventing aviation
Jump to navigation Jump to search

USPC 244/89 Elevators both front and rear: Horizontal rudders arranged at both the front and the rear of aircraft. Subclass USPC 244/90]: Ailerons and other roll control devices: Devices for controlling aircraft about their horizontal fore-and-aft axes.

Patents in this category
Enclosing categories USPC 244/87
Subcategories USPC 244/90
Start year
End year