|
US908454A
|
|
Gas-producer control.
|
|
US844857A
|
|
Process of burning cement and apparatus therefor.
|
|
US854228A
|
|
Process of generating producer-gas.
|
|
US977113A
|
|
Fuel-burner for cement-kilns.
|
|
US885328A
|
|
Process of oxidizing ores.
|
|
US932689A
|
|
Process of oxidizing ores.
|
|
US887316A
|
|
Process of heating cement-kilns by producer-gas and apparatus therefor.
|
|
US918020A
|
|
Cement-burning apparatus.
|
|
US819127A
|
|
Process of conducting combustion.
|
|
US854157A
|
|
Process of generating hydrogen.
|
|
US810685A
|
|
Power gas apparatus.
|
|
US809339A
|
|
Fluid-sealing device for gas-producers.
|
|
US843715A
|
|
Gas-generating apparatus.
|
|
US812786A
|
|
Heat-recuperator for cement-kilns.
|
|
US813628A
|
|
Process of operating gas-producers.
|
|
US815913A
|
|
Gas-producer.
|
|
US835506A
|
|
Art of generating gas.
|
|
US843592A
|
|
Process of manufacturing steel.
|
|
US812194A
|
|
Power-gas producing and consuming apparatus.
|
|
US820485A
|
|
Process of producing gas.
|
