CH70939A
(en )
1915-11-16
Method and machine for the production of mosaic panels
CH72355A
(en )
1916-05-01
Process for the production of road surfaces
CH65491A
(en )
1914-06-16
Process for the production of hollow stones closed on all sides
CH61239A
(en )
1913-09-16
Method and machine for the production of flat profile pieces
CH69677A
(en )
1915-07-16
Machine for the production of Tresterstöckli
CH72628A
(en )
1916-06-16
Process for the production of antimonies
CH72366A
(en )
1916-10-16
Process for the production of tops
CH74234A
(en )
1917-02-01
Process and device for the production of embossed imitations
CH70182A
(en )
1915-09-01
Process for the production of upholstery wool
CH63963A
(en )
1914-03-02
Process for the manufacture of cement articles and machine for practicing the same
CH73264A
(en )
1916-09-01
Machine for the production of panels
CH73591A
(en )
1916-10-16
Process for the production of colored stereo images
CH72152A
(en )
1916-04-01
Method and device for the production of sand-lime bricks
CH68153A
(en )
1915-02-16
Process for the production of fuel
AT57793B
(en )
1913-02-25
Method and device for the production of asbestos cement panels.
AT78652B
(en )
1919-10-10
Machine and method for the production of flat square paper sacks.
CH57226A
(en )
1912-12-16
Process for the production of covering panels
AT77178B
(en )
1919-07-25
Method for making match outside shafts or the like and machine for making the same.
CH75351A
(en )
1917-07-16
Method and device for the production of interchangeable photographs
CH71791A
(en )
1916-07-17
Process for the production of textile fibers
CH71194A
(en )
1915-12-01
Process for the preparation of anthraquinone
CH68831A
(en )
1915-04-16
Process for the production of borofluorotassium
CH60919A
(en )
1913-08-16
Process and box for the production of cork insulating bricks and structural components
CH72151A
(en )
1916-04-01
Forming machine for the production of hollow stones
CH71161A
(en )
1915-12-01
Process for the production of portland cement