CH69911A
(en )
1915-08-02
Process for the distillation of coal
FR471405A
(en )
1914-10-26
Coal distillation process
FR517931A
(en )
1921-05-17
Process for the separation of gas mixtures
CH72052A
(en )
1916-03-16
Process for the production of pure coal
FR483454A
(en )
1917-07-11
Retort for the destructive distillation of coal
FR479295A
(en )
1916-03-03
Process for the production of toluene
FR458441A
(en )
1913-10-10
Process for the purification of graphite
FR450144A
(en )
1913-03-15
Process for the separation of mineral mixtures
FR461785A
(en )
1914-01-10
Process for the purification of nitrocellulose
FR474608A
(en )
1915-03-02
Process for the regeneration of arc lamp coals
FR477983A
(en )
1915-11-18
Process for the purification of unsaturated hydrocarbons
CH55698A
(en )
1912-09-02
Process for improving the stability of railways
FR407906A
(en )
1910-03-14
Process for the continuous distillation of tar
FR519069A
(en )
1921-06-04
Advanced Hydrocarbon Distillation Process
FR433695A
(en )
1912-01-13
Advanced process for the manufacture of metallurgical coke
FR480803A
(en )
1916-09-28
Method for reducing the resistivity of carbon electrodes
CH73689A
(en )
1916-11-01
Process for the manufacture of snowshoes
FR469271A
(en )
1914-07-28
Process for improving the quality of solid inorganic materials
FR467910A
(en )
1914-06-24
Process for improving cigarettes
FR467949A
(en )
1914-06-24
Economical construction process
FR464538A
(en )
1914-03-24
Process for the preparation of polynitrocarbazols
FR513311A
(en )
1921-02-12
Process and installation for the preparation of bleaching carbon
CH54145A
(en )
1912-05-01
Process for the purification of hydrocarbons
FR472233A
(en )
1914-11-26
Process for the preparation of boroformates
FR435357A
(en )
1912-02-28
Process for separating gas mixtures