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RU1784561C
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Device for caving bridges materials in hoppers
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SU1747348A1
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Device for free circulation of granular material in bins and hoppers of belt conveyers
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Lining plate
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Pneumatic pulsed apparatus
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Conveyer loading arrangement
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Arrangement for caving-in loose materials in hopper
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Pulsed pneumatic arrangement for caving-in bridges in hoppers
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Grate screen
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Screen
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