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About Stephen Stepanian
- Stephen Stepanian (February 28, 1882 – October 18, 1964) (Armenian: ?????? ?????????) (Russian: ?????? ????????) was an Armenian American inventor and owner of numerous patents including the Elevator and Conveyor, Compound Tool, and the Wrench.
- He is also accredited as the inventor of a self-discharging motorized transit mixer that was the predecessor of the concrete mixer truck.
- Stepanian is often called the "father of the ready-mix concrete industry."
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