|
GB1030697A
|
|
Improvements in or relating to fluid pipe end connections
|
|
GB990787A
|
|
Improved hydraulic control means for a mine roof support
|
|
GB980491A
|
|
Improvements in or relating to caps for pit props
|
|
GB884224A
|
|
An improved pick for cutting machines used in mines
|
|
GB947303A
|
|
Improvements in releasable roof supports for mines
|
|
GB834613A
|
|
An improved pick for cutting machines used in mines
|
|
GB877720A
|
|
An improved cutter jib and post structure for a mineral-mining machine
|
|
GB876562A
|
|
Improvements in cutter picks for mineral-mining machines
|
|
GB691361A
|
|
Guard for coal cutting machines
|
|
CA530916A
|
|
Cutter pick assemblies for mining machine
|
