|
GB728795A
|
|
Improvements in or relating to protective systems for polyphase a.c. loads
|
|
GB723292A
|
|
Improvements in cutter chains for mining machines
|
|
GB701490A
|
|
Hose and lagging clamp
|
|
GB707898A
|
|
Improvements in or relating to mining machines
|
|
GB704681A
|
|
Improvements in or relating to mining machines
|
|
GB703630A
|
|
Improvements in or relating to protective systems for polyphase a.c. loads
|
|
GB696690A
|
|
Mining machine
|
|
GB686919A
|
|
Improvements in longwall mining machines
|
|
GB687671A
|
|
Improvements in or relating to longwall mining machines
|
|
GB707046A
|
|
Improvements in or relating to electric switchgear boxes
|
|
GB686324A
|
|
Gummer for coal cutting machines
|
|
GB681210A
|
|
Improvements in cutter chains for mining machines
|
|
GB678399A
|
|
Cutter-loader coal mining machine
|
|
GB675232A
|
|
Improvements in or relating to mining machines
|
|
GB673022A
|
|
Improvements in or relating to longwall chain-cutting mining machines
|
|
GB662039A
|
|
Cutter loader unit for use in coal-mining
|
|
GB663324A
|
|
Improvements in mining machines of the trepanning chain-cutter jib type
|
|
GB647873A
|
|
Improvements in or relating to mining machines
|
|
GB647870A
|
|
Improvements in or relating to mining machines
|
|
GB635395A
|
|
Improvements in gummers for use in conjunction with coal mining machines
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