If you had invested $10,000 in Warren Buffett's Berkshire Hathaway (NYSE: BRK.A) (NYSE: BRK.B) 40 years ago, your investment would be worth $4.42 million today. Those massive gains were driven by Buffett's big bets on companies like Coca-Cola, Bank of America, American Express, and Apple -- and investors still follow his biggest trades closely today.

But with dozens of stocks in Berkshire's portfolio, it can be easy to overlook some of Buffett's smaller and lesser-known positions. Let's focus on three of those underrated plays -- and why they might be good long-term plays for patient investors.

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Source Fool.com