FR568959A
(en )
1924-04-04
Continuous furnace for the distillation of lignite, peat, shale, sawdust and similar materials
SU11302A1
(en )
1929-09-30
Device for turning the shaft of the kneading-forming peat machines
ES77979A1
(en )
1921-06-16
Improvements in the distillation of coal and similar carbonaceous substances.
SU6960A1
(en )
1924-09-15
Square piece made of transparent material adapted to divide straight lines into equal parts.
ES67694A1
(en )
1918-09-16
Refinements in retorts, for the continuous carbonization of coal and the like.
DK30164C
(en )
1922-09-04
Apparatus for the distillation of coal and similar carbonaceous substances.
ES90157A1
(en )
1924-10-16
A continuous furnace for the distillation of lignite, peat, shale, sawdust and similar materials.
DK27996C
(en )
1921-07-11
Devices relating to the destructive distillation of wood, wood pulp and similar carbonaceous substances.
ES79772A1
(en )
1922-02-01
Improvements in devices for the distillation of carbonaceous materials.
DK33649C
(en )
1924-09-08
Procedure for the production of decolorizing coal.
FR548126A
(en )
1923-01-05
Improved method of carbonizing hard coal, or the like
FR876359A
(en )
1942-11-04
Retort improvements for the continuous carbonization of coal and other similar materials
FR565284A
(en )
1924-01-23
Process and furnace for the distillation of wood, sawdust and wood waste and the like
FR30463E
(en )
1926-07-17
Furnace for the distillation, at low temperature, of coal, lignite, peat, sawdust or any other material
FR583773A
(en )
1925-01-21
Improvements to retort devices for the treatment of materials such as shale, coal, etc.
ES133618A3
(en )
1934-04-16
Improvements related to retorts for the distillation of coal and other solid carbonaceous substances.
FR529226A
(en )
1921-11-25
Process for the distillation of shale, coal, etc.
ES90259A1
(en )
1924-09-16
Improvements in retorts and other devices for the treatment of coal, shale and similar materials.
FR562810A
(en )
1923-11-20
Improvements to the kilns
FR587140A
(en )
1925-04-11
Furnace for charring wood
CH128188A
(en )
1928-10-16
Kiln for the dry distillation of lignite.
ES87833A1
(en )
1924-02-16
Improvements in the concentration of coal.
ES75810A1
(en )
1921-01-16
Improved process for the distillation, carbonization or gasification, etc., of solid carboniferous matters.
FR600362A
(en )
1926-02-05
Process for the distillation of carbonaceous materials
ES133718A3
(en )
1934-04-16
Improvements relating to retort installations for the distillation of coal and other solid carbonaceous substances