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According to the passage, how did Bell finally receive the pat | Learn English with us

According to the passage, how did Bell finally receive the patent for his invention?
Anonymous Quiz
5%
He waited the official 10 years for it to happen.
5%
He went to the patent office to get the official rights.
76%
The Supreme Court ruled in Bell’s favor.
14%
He spilled acid on his clothes and called his friend for help.
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