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US7926410B2
(en)
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Hydraulic circuit for synchronized horizontal extension of cylinders
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Releasable check valve used in underground mining as either robbing or jacking valve
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(de)
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Hydraulischer Schildausbau
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수술대
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PL83636B1
(cg-RX-API-DMAC7.html)
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(cg-RX-API-DMAC7.html)
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(en)
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Pilot valve of a mechanical support hydraulic prop
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Hydraulic control systems for use with mining apparatus
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Method for controlling a hydraulically operated mine roof support and an arrangement for carrying out the method
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(en)
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Support prop for use in mines
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(cg-RX-API-DMAC7.html)
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Control system for a stepping hydraulic roof propping system
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(cg-RX-API-DMAC7.html)
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Гидросистема управлени механизированной крепью
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Hydraulic control devices
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Two-way hydraulic motor
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Układ wychyłu ramienia górniczego kombajnu ścianowego
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PL91078B1
(cg-RX-API-DMAC7.html)
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