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Timeline of united states inventions

chronological list of advances

Pronunciation
/ˈtʌɪmlʌɪn əv juːˈnʌɪtɪd steɪts ɪnˈvɛnʃənz/
/ˈtaɪmlaɪn əv juˈnaɪdəd steɪts ˌɪnˈvɛnʃənz/
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