|
US1058191A
|
|
Furnace.
|
|
US1040723A
|
|
Gas-producer.
|
|
US992523A
|
|
Gas-producer.
|
|
US913591A
|
|
Gas-producer.
|
|
US908479A
|
|
Wind-box for gas-producers.
|
|
US880840A
|
|
Furnace.
|
|
US848118A
|
|
Gas-producer.
|
|
US833170A
|
|
Reverse-valve.
|
|
US871428A
|
|
Feeding apparatus for gas-producers.
|
|
US813226A
|
|
Furnace.
|
|
US815198A
|
|
Continuous-heating furnace.
|
|
US805372A
|
|
Regenerative muffle-furnace.
|
|
US773634A
|
|
Furnace-charging apparatus.
|
|
US767399A
|
|
Feeding device for gas-producers, furnaces, or the like.
|
|
US670152A
|
|
Gas-producer.
|
|
US822380A
|
|
Continuous ingot-heating furnace.
|
