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US3667621A
(en)
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Fluid power system for a self-contained unloading unit
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US2352390A
(en)
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Hydraulic jack
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ES424907A1
(es)
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Un aparato de elevacion.
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GB1210015A
(en)
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Pressure indicating apparatus for hydraulic mine roof support rams
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US3840047A
(en)
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Hydraulic apparatus
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GB1314490A
(en)
|
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Retractable ejector devices
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PL61340B1
(cs)
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|
|
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US3656411A
(en)
|
|
Telescopic props
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US5936168A
(en)
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Dual injector cylinder automatic insertion device for use with high pressure pipelines
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US3109283A
(en)
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|
Cartridge actuated thruster
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US4042280A
(en)
|
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Method of breaking up objects
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US3834282A
(en)
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|
Actuator and latch
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PL60677B1
(cs)
|
|
|
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US3326524A
(en)
|
|
Hydraulic systems for chain tighteners and the like
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US2927377A
(en)
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Opening and closing device for well bore caliper
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GB843354A
(en)
|
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Improvements in hydraulically operated supporting devices
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US3045649A
(en)
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Double acting tool and die cylinder
|
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GB1131356A
(en)
|
|
Shifting device for longwall conveyors
|
|
US4302143A
(en)
|
|
Device for filling a container which is under pressure
|
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GB1098499A
(en)
|
|
An improved hydraulic pressure testing device
|
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GB1425153A
(en)
|
|
Devices for use in measuring gas flow
|
|
US2888231A
(en)
|
|
Roof supports
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GB754108A
(en)
|
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Hydraulic roof supports for mines
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RU2161253C1
(ru)
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|
Силовой гидроцилиндр
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GB1082257A
(en)
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Bracing device particularly suitable for use at the end of a face conveyor at a coal face where a coal plough is employed
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