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Lallement was born on October 25, 1843
in Pont-à-Mousson near Nancy, France.
In 1862, while Lallement was employed building baby carriages in Nancy, he saw someone riding a dandy horse, a forerunner of the bicycle that required the rider to propel the vehicle by walking. Lallement modified what he had seen by adding a transmission comprising a rotary crank mechanism and pedals attached to the front-wheel hub, thus creating the first true bicycle.
The original patent for the pedal-driven bicycle, filed by Pierre Lallement, US Patent No. 59,915 granted November 20, 1866
He moved to Paris in 1863, apparently interacted with the Olivier brothers, who saw great commercial potential in his invention. The Oliviers formed a partnership with Pierre Michaux to mass-produce a 2-wheeled velocipede. Whether these bicycles used Lallement's design of 1864 or another by Ernest Michaux is a matter of dispute. Lallement himself apparently become an employee of Michaux for a short time.
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source :
http://en.wikipedia.org/wiki/Pierre_Lallement
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