|
GB1147911A
|
|
Improvements relating to idler rollers for belt conveyors
|
|
GB1111514A
|
|
Improvements relating to means for conveying coal in mines
|
|
GB1110430A
|
|
Improvements relating to endless belt conveyors
|
|
GB1110049A
|
|
Improvements relating to endless belt conveyors
|
|
GB1118891A
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|
Improvements in face conveyors for mine workings
|
|
GB1108187A
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Improvements relating to coal-mining face installations and conveyors for installation therein
|
|
GB1100326A
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|
Improvements relating to armoured flexible conveyors
|
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GB1107542A
|
|
Improvements in mineral-mining machines
|
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GB1059694A
|
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Means for crushing large coal on a conveyor
|
|
CA817745A
|
|
Belt conveyors
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