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NZ290202A
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Seal for boat propeller shaft with consecutive stages having weirs that water cannot pass
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CA2196680A1
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Floating seal for high rotational speed propeller shafts with integrated forced oil circulation generator and safety devices
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IE27935L
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Electrolytic production of copper plates
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ES298353A1
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Installation for the production of electrolytic copper in plate (Machine-translation by Google Translate, not legally binding)
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CA752365A
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Apparatus for the production of electrolytic copper in the form of continuous plates
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