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Im a car guy and that's a interesting question but Ill give it a try anyway. I really don't think anyone has a patent on AWD its self because just about every manufacturer makes it. Now each manufacturer has ther own version of it and out of each would have ther own patent. Now who do we have to thank for AWD I believe that would be Subaru (that's my best guess any way) hope this helped Don
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∙ 12y ago
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