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1. An electrically driven device comprising a housing and a chassis, wherein the chassis comprises a plastic skeleton for receiving an electric motor having a first drive shaft, a battery unit, a printed circuit board (PCB) and an oscillating body having a second drive shaft to drive a cutter unit upon movement of the oscillating body, wherein a first longitudinal axis is defined along the second drive shaft, wherein a second longitudinal axis is defined along the first drive shaft with the second longitudinal axis passing through the oscillating body, and a third longitudinal axis is defined through a center of a body of the battery unit, the second longitudinal axis and the third longitudinal axis are parallel and offset to the first longitudinal axis and the second longitudinal axis is offset from the third longitudinal axis, wherein the oscillating body has a corner section and the second drive shaft is located in the corner section, wherein the second drive shaft extends from a side of the oscillating body nearest to the cutter unit and opposite to a side of the oscillating body nearest to the electric motor, wherein the electric motor comprises a drive pin rotatable eccentrically about the second longitudinal axis, wherein the oscillating body comprises an elongated hole for receiving the drive pin, the elongated hole having a smaller widening in a direction of oscillation of the oscillating body.
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