|
US4281746A
|
|
Inching device
|
|
US3747411A
|
|
Suspension sampling
|
|
GB1070619A
|
|
System for loading train of cars with solid fluent material
|
|
US3422771A
|
|
Articulated railway hopper cars
|
|
US3374908A
|
|
System for loading train of cars with solid fluent material
|
|
US3389990A
|
|
Manganese nitride
|
|
US3340394A
|
|
Train braking system
|
|
US3368081A
|
|
Automatic trackside car door position recorder
|
|
US3251487A
|
|
System for loading train of cars with solid fluent material
|
|
US3254985A
|
|
Pelletizing relatively coarse iron minerals
|
|
GB947670A
|
|
Beneficiating low-grade specular hematite ore material
|
|
US2931720A
|
|
Beneficiation of low-grade hematitic ore materials
|
|
US2789894A
|
|
Pelletizing high-mositure ore
|
|
US2710691A
|
|
Separatory apparatus
|
|
US2745730A
|
|
Process of reducing manganese ores
|
|
US2670946A
|
|
Apparatus for magnetic roasting
|
|
US2608481A
|
|
Heat-treating solids
|
|
US2528553A
|
|
Process of magnetic roasting
|
|
US2522639A
|
|
Process and apparatus for thermal treatment of solids
|
|
US2528552A
|
|
Process for magnetically roasting hematitic ore and ore materials
|
