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GB1210115A
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Ball game apparatus
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ES260752A1
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A procedure for the construction of bee nest beams (Machine-translation by Google Translate, not legally binding)
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ES258030A1
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A device for the manufacture of beams (Machine-translation by Google Translate, not legally binding)
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DE1690760B1
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Device for the machine production of honeycomb beams
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CA750616A
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Honey-comb girders
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CA750615A
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Method and apparatus for the manufacture of deeply-webbed girders
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CA576827A
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Apparatus for use in the manufacture of deeply-webbed girders
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CA737169A
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Constructional part for models or toy building sets
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