Yes but the Model T was the only vehicle produced by assembly line which allowed later mass production of armoured cars and tanks. So any assembly line production would begin outside Ford plants in 1909 and not affect production until later that year or even 1910.
The production line concept was first used by Eli Olds before Ford took it up Fords then tried to sue any other manufacturer using it in order to secure their hold on the market.
The Wrights were the first to prove heavier than air flight. I do not see what significance any other people working on it could have to the development of aircraft?
What about this intrepid American pioneer aviator?http://www.hants.gov.uk/museum/aldershot/cody/flying.html
With this machine that flew in 1908. Aircraft and mass production would have happened anyway with different pioneers. Mans desire to kill of his fellow man in increasingly industrial quantities would have made sure of that.