FR519528A
(en )
1921-06-11
Process for the production of economical soaps
CH79912A
(en )
1919-06-02
Process for the establishment of reinforced floors
FR490959A
(en )
1919-05-17
Method for the purification of anthraquinone
FR497817A
(en )
1919-12-18
Process for the establishment of reinforced concrete constructions
FR495578A
(en )
1919-10-11
Process for the manufacture of superphosphates
FR501255A
(en )
1920-04-08
Process for the construction of brick walls
FR497290A
(en )
1919-12-02
Process for the production of aluminum azide
FR519557A
(en )
1921-06-11
Process for the construction of hollow partitions
FR529739A
(en )
1921-12-05
Process for the production of reinforced concrete construction elements
FR526968A
(en )
1921-10-17
Process for the manufacture of resin-like substances
FR498438A
(en )
1920-01-10
Process for the dehydration of tar
FR517801A
(en )
1921-05-12
Process for the manufacture of corks
CH78646A
(en )
1918-08-16
Process for the manufacture of briquettes
CH58819A
(en )
1913-04-16
Process for the establishment of reinforced concrete floors
FR493452A
(en )
1919-08-09
Process for the separation of cresols
FR518574A
(en )
1921-05-27
Process for the production of acetic aldehyde
FR524751A
(en )
1921-09-10
Process for the manufacture of cartridge cases
FR519113A
(en )
1921-06-04
Process for hardening the surface of patent leather
FR497513A
(en )
1919-12-09
Process for the manufacture of thermal accumulators
FR491304A
(en )
1919-05-30
Process for the use of waste from the manufacture of celluloid articles
FR509112A
(en )
1920-11-02
Process for hardening tuff bricks
FR497467A
(en )
1919-12-06
Process for the manufacture of methyl chloroformate
FR20990E
(en )
1920-02-05
Bricks for reinforced constructions
FR494115A
(en )
1919-08-30
Bricks for reinforced constructions
FR21097E
(en )
1920-03-19
Bricks for reinforced constructions