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DE1954645A1
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Wandering longwall mining
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GB1247152A
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Mining system and apparatus
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DE1556345A1
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Mobile fork jib crane
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US3460697A
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Transportable load carrying appliances
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GB1236586A
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Improved load handling means primarily for vehicle containers
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ES344005A1
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A system to support the ceiling of a mine. (Machine-translation by Google Translate, not legally binding)
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GB1164669A
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An improved Vehicle for Handling Transferable Bulk Container, Machinery and like Loads
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GB1216322A
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Improvements in or relating to mine roof supports
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GB1189341A
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Improvements in or relating to Transportable Load-Carrying Appliances
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GB1159305A
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Improvements in or relating to Transferable Vehicle Goods Containers
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GB1168903A
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Improvements in or relating to Transportable Loading-Carrying Appliances
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GB1168902A
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Improvements in or relating to Transportable Load-Carrying Appliances
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GB1145129A
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An improved rail hole swaging machine
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US3464445A
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Fluid valve means for mine roof supports
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GB1183707A
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Improved Fluid Operated Tool Device for Cylinder Interiors.
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GB1187208A
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Improvements in or relating to a Pilot-operable Hydraulic Valve
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GB1153866A
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Improvements in or relating to Hydraulic Cylinders and Rams for Hydraulic Mine Roof Supports
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GB1153573A
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Improvements in or relating to Mine Roof Support systems
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GB1169361A
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Improvements in Fluid Valve Means for Mine Roof Supports
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GB1148094A
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Improvements in fluid flow control valves primarily for mine roof support props
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