|
GB191028941A
|
|
Improved Means for Charging Vertical Retorts.
|
|
GB191028942A
|
|
Improvements in Means for Operating Doors or Gates of Upright Distilling Retorts.
|
|
GB191017949A
|
|
Improvements in Upright Distilling Retorts.
|
|
CA127141A
|
|
Distilling oven
|
|
US972674A
|
|
Apparatus for opening or closing the discharge-openings of vertical retorts.
|
|
US997742A
|
|
Apparatus for charging vertical retorts or chambers.
|
|
US989324A
|
|
Art of producing gases in upright retorts.
|
|
GB190814604A
|
|
Improvements in Gas Generating Furnaces.
|
|
GB189904614A
|
|
Improvements in and relating to Smoke Consuming Furnaces.
|
