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CH512315A
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Method for making of rolls, wheel etc from plastics
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ES346101A1
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Improvements in the quick linked provisions for pipelines and similar. (Machine-translation by Google Translate, not legally binding)
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ES335633A1
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Improvements in the quick linked devices for the connection of conductions and similar. (Machine-translation by Google Translate, not legally binding)
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FR1473118A
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Quick coupling device for joining pipes and the like
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FR1487323A
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Quick coupling device for joining pipes and the like
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