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ES367898A1
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Improvements in the construction of tower cranes with car. (Machine-translation by Google Translate, not legally binding)
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ES367897A1
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Reversible reducer group suitable to perform a very high transmission relationship. (Machine-translation by Google Translate, not legally binding)
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GB1183609A
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Tower Cranes
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ES340597A1
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Improvements in elevation appliances. (Machine-translation by Google Translate, not legally binding)
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ES319477A1
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Control and signaling device for elevated loads for elevation appliances. (Machine-translation by Google Translate, not legally binding)
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ES318942A1
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Braking device and locking of useful machines. (Machine-translation by Google Translate, not legally binding)
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