|
CA375202A
|
|
Dust laden air treating apparatus
|
|
CA459704A
|
|
Apparatus for mining
|
|
CA438099A
|
|
Hydraulic machine
|
|
CA479116A
|
|
Mining machines
|
|
CA478955A
|
|
Power-actuated vehicle-moving apparatus, particularly for use in collieries
|
|
CA453870A
|
|
Conveyer of the endless belt type
|
|
CA515548A
|
|
Haulage apparatus for mining machines
|
|
CA458611A
|
|
Apparatus for mining
|
|
CA533590A
|
|
Pneumatically controlled hydraulic prop
|
|
CA545182A
|
|
Scraper conveyors
|
|
CA470196A
|
|
Mining machines
|
|
CA468822A
|
|
Mining machines
|
|
CA479117A
|
|
Rope haulage apparatus for mines
|
|
CA587486A
|
|
Loader gathering arm linkage
|
|
CA525318A
|
|
Conveyors and jacks for shifting the same
|
|
CA453871A
|
|
Conveyer of endless belt type
|
|
CA478741A
|
|
Methods of mining coal and coal-mining machines
|
|
CA477282A
|
|
Anchoring devices for coal and other mines
|
|
CA376239A
|
|
Cutting machine for coal, etc.
|
|
CA471353A
|
|
Mining machines
|
