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GR57852B
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Federtriebwerk,insbesondere fuer fahrspielzeuge
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ZA7401090B
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Apparatus for mechanically breaking up rock
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AU6068073A
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Apparatus for splitting rock
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ZA7303993B
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An apparatus for breaking or splitting rock
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ZA7200208B
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A hydraulically operated instrument for the mechanical breaking down of stones
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US3791698A
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Hydraulically operated apparatus for mechanical splitting of rock and the like
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ZA7104615B
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Spring driving mechanism,especially for self-propelled toys
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