|
GB114040A
|
|
Improvements in or relating to the Manufacture of Lamp Black.
|
|
CA166101A
|
|
Hydro-carbon
|
|
CA139283A
|
|
Artificial fuelq
|
|
GB191026512A
|
|
Improvements in or relating to the Manufacture of Artificial Fuel.
|
|
GB190716144A
|
|
Improvements in or relating to Apparatus for Mouldng & Compressing Purposes, such as the Manufacture of Briquettes or the like.
|
|
US857417A
|
|
Apparatus for making artificial fuel.
|
|
GB190509588A
|
|
Improvements in or relating to the Manufacture of Coke and Apparatus therefor.
|
|
GB190405712A
|
|
Improvements in or relating to the Manufacture of Artificial Asphalt or the like Composition
|
|
US774705A
|
|
Manufacture of artificial fuel.
|
|
GB190321300A
|
|
Improvements in or relating to Artificial Fuel and the Manufacture thereof.
|
|
CA62210A
|
|
Earth thawing apparatus
|
|
CA65303A
|
|
Earth thawing apparatus
|
|
CA60430A
|
|
Method of and apparatus for extracting metals from their ores
|
|
GB189627346A
|
|
Improvements in Extracting Metals from their Ores, and Apparatus therefor.
|
|
CA42457A
|
|
Process of and apparatus for extracting metals from ores
|
