In the year 2000 the I submitted my invention to invent tech then I paid $1,000 for them to market and paten it for me. 6 years later when audi announced that the will have a blind spot checker for lane changing I called them and asked why are all car manufacturers using my invention without my consent, the sales man at envint tech replied that I am barking at the wrong tree and that invent tech can't help me with why my pattern is being manufactured buy them.
Bader h alhazzaa
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