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by adrian_b
452 days ago
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Their invention patent (US 821,393) correctly claims the invention of a 3-axis airplane orientation control system, not the invention of the airplane, which is treated as a well-known class of flying-machines, which is improved by their invention. An airplane without good aircraft controls could start to fly without problems, but it would normally crash sooner or later, either due to flight instabilities or because it had to eventually land somewhere. |
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