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GB462551A
|
|
Improvements relating to cutter chains for coal-cutting machines
|
|
GB460381A
|
|
Improvements relating to cutter chains for coal-cutting machines
|
|
GB191108954A
|
|
Improvements in or relating to Coal-cutting Machines.
|
|
GB191201616A
|
|
Improvements in or relating to Coal-cutting Machines.
|
|
GB191030102A
|
|
Improved Means for Collecting and Returning Oil Supplied to Bearings of Rotating Shafts.
|
|
GB190929762A
|
|
Improvements in Coal Cutting Machines.
|
|
GB190823140A
|
|
Improvements in and relating to Coal Cutting Machines.
|
|
GB190725256A
|
|
Improvements in Mechanism for Driving Coal Cutting Machines.
|
|
CA373029A
|
|
Coal cutter chain
|
|
CA494570A
|
|
Mining machine
|
