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ES259751A1
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Improvements in automatic deserting devices of plow doble-brabant (Machine-translation by Google Translate, not legally binding)
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ES259752A1
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Improvements in the devices of regulating the body of the plow on the beam (Machine-translation by Google Translate, not legally binding)
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ES233504A3
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Automatic coupling prompt for axial traction agricultural instruments (Machine-translation by Google Translate, not legally binding)
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US2947368A
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Overload release for rotatably mounted drawbar
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ES219781A1
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A front train for motorized reversible plows (Machine-translation by Google Translate, not legally binding)
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GB603180A
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Improvements in grapples for motor wheels with pneumatic tyres for tractors or other vehicles
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GB608229A
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Steering agricultural tractors by de-clutching
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GB602748A
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Improvements in lifting mechanisms for agricultural machines
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GB602809A
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Improvements in agricultural implements for cultivating the soil
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GB511342A
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Improvements in wheels for agricultural tractors and other vehicles
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