|
US4406375A
(en)
|
|
Telescopic boom construction
|
|
US20050058508A1
(en)
|
|
Boat lift
|
|
EP0068004B1
(en)
|
|
Unloading means for bulk material
|
|
PL132639B1
(en)
|
|
Apparatus for mining steep deposits,in particular coal strata and method of placing this apparatus in a steep longwall open-end
|
|
PL63630B1
(enExample)
|
|
|
|
US3418814A
(en)
|
|
Roof supports for mine workings
|
|
US3355213A
(en)
|
|
Mine roof supports and conveyors for use in conjunction therewith
|
|
US4189258A
(en)
|
|
Walking mine-roof support
|
|
US5979642A
(en)
|
|
Extendable modular conveyor assembly
|
|
KR20150103689A
(ko)
|
|
사다리 세트, 특히 소방용 사다리 및 사다리 세트가 장착된 차량
|
|
US5252006A
(en)
|
|
Mine roof support
|
|
US3441317A
(en)
|
|
Roof supporting arrangement including cantilevered roof bar carrying extensible roof supporting cap and cutter means
|
|
US4227679A
(en)
|
|
Hoist with two or more hoisting units
|
|
PL90458B1
(enExample)
|
|
|
|
US4571004A
(en)
|
|
Mechanism for controlling the elevation of a coal planer
|
|
CN108547654B
(zh)
|
|
便于控制放煤量的悬移放顶煤液压支架及其使用方法
|
|
GB2080380A
(en)
|
|
Mine Roof Supports
|
|
US2854768A
(en)
|
|
Forward dump scraper and control means therefor
|
|
US4411559A
(en)
|
|
Mining system
|
|
US20200131906A1
(en)
|
|
Roof support connector
|
|
US3285661A
(en)
|
|
Planer and reinforcement guide follower arrangement
|
|
US20090039695A1
(en)
|
|
Guide frame for guiding conveyor segments in high wall mining
|
|
GB2236788A
(en)
|
|
Mine roof supports
|
|
EP3173367B1
(en)
|
|
Movable lift apparatus
|
|
HU176298B
(en)
|
|
Device whitch suitable for sustaining and after tightening of longwall cutter and transporter used at sloped longwall
|