FR612250A
(en )
1926-10-19
Improvements in or relating to the carbonization of coal, peat, wood and similar substances
FR659302A
(en )
1929-06-27
Improvements in the distillation of coal and other solid carbonaceous substances
FR808309A
(en )
1937-02-03
Improvements to carbonization processes and devices in lane kilns for shale, lignite, coal and the like
FR663496A
(en )
1929-08-21
Improvements in the carbonization and combustion of bituminous coals
FR634399A
(en )
1928-02-16
Improvements to wood gasifiers and others
FR609215A
(en )
1926-08-11
Furnace to carbonize wood and incinerate nitrogenous matter
FR628319A
(en )
1927-10-21
Lignite, peat, carbonized, and charcoal gasifier
FR599817A
(en )
1926-01-21
Improvements in the carbonization of fuels in real retorts
ES77979A1
(en )
1921-06-16
Improvements in the distillation of coal and similar carbonaceous substances.
FR574760A
(en )
1924-07-18
Process for the carbonization and gasification of peat, lignite, sapropel and similar bituminous fuels
FR599916A
(en )
1926-01-25
Portable device for carbonization of wood in the forest
FR688258A
(en )
1930-08-21
Furnace perfected for the carbonization of wood and other materials
FR604285A
(en )
1926-05-01
Improvement in wood carbonization devices
FR647112A
(en )
1928-11-20
Lean or anthraoitous coal carbonization process
FR574340A
(en )
1924-07-09
Improvements in the destructive distillation of coal and similar carbonaceous substances
FR616625A
(en )
1927-02-05
Improvements made to carbonization or fuel dissociation processes
FR622324A
(en )
1927-05-28
Furnace for charring wood and twigs
ES98203A1
(en )
1926-08-01
Improvements in the carbonization of solid and liquid fuels.
FR696500A
(en )
1930-12-31
Improvements to coal, stone and material crushers or crushers, similar
ES102427A1
(en )
1927-06-01
Improvements in the coking of fuels, mainly of coal.
FR593029A
(en )
1925-08-14
Improvements in the distillation of carbonaceous substances
FR685815A
(en )
1930-07-17
Improvements to installations for the carbonization of coal and similar material
FR565960A
(en )
1924-02-07
Improvements in the distillation of oil and similar carbonaceous substances
ES106941A1
(en )
1928-06-01
Improvements in the retorts and their analogues for the carbonization of the coal.
FR616949A
(en )
1927-02-10
Sawdust and friable peat gasifier