|
GB849161A
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Improvements in or relating to self-contained mobile power driven conveyor systems
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GB857772A
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Flexible conveyor
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GB835432A
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Improvements in or relating to mining machines
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GB835125A
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Improvements in or relating to mining machines
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GB835269A
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Improvements in or relating to mining machines
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GB842700A
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Improvements in or relating to mining machines
|
|
GB842701A
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Improvements in or relating to mining machines
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Boring type mining head having eccentric wedge
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Continuous automatic flexible conveyer
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Self-contained mobile power driven conveyer system
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Mine face traversing mining head
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Mine roof jack
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Bit for rotary coal cutting machines
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Vertically and laterally expansible continuous mining machine
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Continuous mining machine with vertically separable cutter carrying units
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Intermittent mining machine with turntable mounted rotary chipping heads
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Detachable toolholder
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Apparatus for continuously digging coal
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Apparatus for continuously digging coal
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CA581684A
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Mine face traversing mining head
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