USPC 244/89

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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
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