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Miljan Vucetic

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479. Miljan Vucetic 1
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last 3 solved tasks
How much is 4x5?

Electric railway device

In 1895, black American inventor William B. Purvis was issued a patent for a "Magnetic Car Balancing Device." In his life, Purvis held other patents for electric railway devices (1894, 1897), and he also patented ten paper bag machines (1884-94). Other patents were issued to him for a bag fastener (1882), a hand stamp (1883) and a fountain pen (1890).

Complimentary soft drink

“Serving yourself a complimentary soft drink is a way to get emotional support.”

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