Alexander Graham Bell is famous for inventing the telephone, but which invention did he actually file the patent for on February 14, 1876?

In 1876, a groundbreaking invention revolutionized how humans communicate across distances. The story behind this invention involves not just technical innovation but also a dramatic race to the patent office and a legal battle that shaped technological history. Test your knowledge about this pivotal moment in product innovation history that laid the foundation for modern telecommunications.

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