Original sentence: Tanks such at the Patton series (M46, M47, M48, and the M60's series) could not conduct these operations; they would have to crawl along the river bottoms using snorkels
Edited sentence: Tanks such at the Patton series (M46, M47, M48, and the M60 Main Battle Tank) could not conduct these operations; they would have to crawl along the river bottoms using snorkels