|
US2439547A
|
|
Apparatus for production of ammonium sulphate
|
|
US2409790A
|
|
Apparatus for the production of ammonium sulphate
|
|
US2426520A
|
|
Apparatus for passing air admixed with rich fuel gas into heating flues of underfired regenerative coke ovens
|
|
US2423794A
|
|
Production of ammonium sulphate
|
|
US2424206A
|
|
Production of ammonium sulphate
|
|
US2424205A
|
|
Production of ammonium sulphate
|
|
US2435898A
|
|
Production of ammonium sulphate
|
|
US2376718A
|
|
Regenerative coke oven
|
|
US2342214A
|
|
By-product coke oven plant
|
|
US2388438A
|
|
Underfired coke oven fuel supply means
|
|
US2382810A
|
|
Charging coke ovens
|
|
US2343318A
|
|
Uniflow type coke oven
|
|
US2346991A
|
|
Coke oven
|
|
US2382809A
|
|
Coking expanding coal
|
|
US2370277A
|
|
Treatment of acid-tar
|
|
US2387818A
|
|
Apparatus for the production of sulphate of ammonia
|
|
US2340981A
|
|
Coke oven construction
|
|
US2293074A
|
|
Horizontal coke oven battery
|
|
US2302728A
|
|
Underfired regenerative coke oven
|
|
US2313764A
|
|
Method of operating coke ovens
|
