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US7926410B2
(en)
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Hydraulic circuit for synchronized horizontal extension of cylinders
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PL124198B1
(en)
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Releasable check valve used in underground mining as either robbing or jacking valve
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AU2004202506B2
(en)
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Hydraulic shield support
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BRPI1103862A2
(pt)
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dispositivo de lubrificaÇço mÍnimo melhorado
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US4694730A
(en)
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Prop control valve
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PL52412B1
(enExample)
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US4046060A
(en)
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Hydraulic control systems for use with mining apparatus
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(en)
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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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CZ65695A3
(en)
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Support prop for use in mines
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PL80728B1
(enExample)
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WO2009024136A2
(de)
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Ausbaugestell für den strebausbau in bergwerken
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PL71636B3
(enExample)
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PL207470B1
(pl)
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Blok zaworowy, zwłaszcza do stojaków obudów górniczych
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SU949198A1
(ru)
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Гидросистема управлени механизированной крепью
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RU2161254C1
(ru)
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Гидросистема секции механизированной крепи
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PL160954B1
(pl)
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Zawór sterowany ciśnieniem
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PL189722B1
(pl)
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Układ wychyłu ramienia górniczego kombajnu ścianowego
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SU375386A1
(enExample)
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PL46883B1
(enExample)
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|
|
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PL63725B1
(enExample)
|
|
|
|
SU1548459A1
(ru)
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Шахтна гидравлическа крепь
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SU1093827A1
(ru)
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Система пылеподавлени механизированной крепи
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DE127303C
(enExample)
|
|
|
|
PL138654B1
(en)
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Hydraulic system of mine lining
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PL139887B1
(en)
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Hydraulic prop
|