|
GB976544A
|
|
Improvements relating to flexible-belt conveyors
|
|
GB982211A
|
|
Improvements relating to rollers or pulleys
|
|
US2921669A
|
|
Troughed conveyor
|
|
GB783904A
|
|
Improvements relating to coal-mining ploughs
|
|
GB788802A
|
|
Improvements relating to conveyors
|
|
US2779639A
|
|
Composite rollers, pulleys and the like
|
|
GB689473A
|
|
Improvements in composite rollers, pulleys and the like
|
|
GB702387A
|
|
Improvements in scraper conveyors
|
|
US2622723A
|
|
Belt conveyer
|
|
GB657236A
|
|
Improvements in or relating to belt conveyors
|
|
US2689717A
|
|
Plow mining method and apparatus
|
|
US2689716A
|
|
Mining plow and conveyer apparatus
|
|
US2689721A
|
|
Mining machine
|
|
GB648352A
|
|
Improvements in or relating to the mining or winning of coal or other material
|
|
GB648353A
|
|
Improvements in and relating to the mining or winning of coal or other material
|
|
GB648351A
|
|
Improvements in and relating to the mining or winning of coal or other material
|
|
GB585526A
|
|
Improvements in or relating to belt conveyors
|
|
CA529963A
|
|
Composite rollers, pulleys and the like
|
|
CA545446A
|
|
Mining machine with plow and conveyor
|
|
CA597707A
|
|
Conveyors
|
