|
US2426434A
|
|
Chasing mill with stationary table and radially arranged roller
|
|
US1918739A
|
|
Gasification apparatus
|
|
US1969501A
|
|
Apparatus for consuming finely divided fuel
|
|
US1888586A
|
|
Firebed agitating mechanism
|
|
US1888585A
|
|
Furnace construction
|
|
US1744446A
|
|
Two-cycle internal-combustion engine
|
|
US1732500A
|
|
Grate structure
|
|
US1722496A
|
|
Boiler and method of operating the same
|
|
US1722495A
|
|
Producer-gas boiler
|
|
US1857354A
|
|
Underfeed mechanism for fuel beds
|
|
US1742691A
|
|
Pneumatic spring
|
|
US1812080A
|
|
Apparatus for burning granulated coal
|
|
US1742690A
|
|
Vehicle support
|
|
US1719874A
|
|
Apparatus for burning finely-divided coal
|
|
US992706A
|
|
Gas-washer.
|
|
US933419A
|
|
Apparatus for burning brick.
|
|
CA123053A
|
|
Gas producer
|
|
US1015296A
|
|
Gas-producer.
|
|
CA110953A
|
|
Mining machine
|
|
US841625A
|
|
Mining-machine.
|
