US2774493A
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Method for unloading vehicles
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US2253004A
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Weighing scale dump
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US2252312A
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Locking device for grain dump piston columns
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US2329969A
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Grain weighing and receiving unit
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US1814016A
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Driving belt controlling device
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CA421922A
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Elevator boot tank
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CA422187A
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Elevator head drive
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CA383371A
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Locking device for grain dump piston columns
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CA413322A
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Vault
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CA382853A
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Grain weighing and receiving unit
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CA439518A
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Car dumping device
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CA295089A
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Driving belt controlling device
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CA412686A
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Floor or wall safe
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CA421923A
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Elevator boot tank
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CA385038A
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Scale dump sleigh
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CA300097A
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Vehicle dump
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