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jogger with unequal shaking forces in a plane which, as a piston engines (combustion - or press air motors) are designed, and in which during the running of the engine speed and thus the oscillation frequency can be adjusted as desired can be obtained
jogger with unequal shaking forces in a plane which, as a piston engines (combustion - or press air motors) are designed, and in which during the running of the engine speed and thus the oscillation frequency can be adjusted as desired can be obtained
