CH73266A
(en )
1916-09-16
Process for the simultaneous manufacture of cement and soda
CH73073A
(en )
1916-08-01
Process for the manufacture of cement and asbestos slabs
FR428950A
(en )
1911-09-11
Process for the manufacture of reinforced cement hollow posts
FR487110A
(en )
1918-06-05
Manufacturing process of a slag cement
FR490898A
(en )
1919-05-13
Process and machine for the manufacture of reinforced cement blocks
CH70249A
(en )
1915-09-01
Process and furnace for the manufacture of cement or hydraulic lime
FR507082A
(en )
1920-09-04
Machine for the production of cement pipes
FR475074A
(en )
1915-04-09
Process and molds for the construction of monolithic buildings
CH71889A
(en )
1916-03-01
Process for the production of white cement
FR506621A
(en )
1920-08-26
Process for the simultaneous production of chlorine and sulphates
FR469149A
(en )
1914-07-24
Process for the production of cement and similar mortar materials
CH69795A
(en )
1915-07-16
Second hand for watches and process for its manufacture
FR488796A
(en )
1918-11-14
Process for the manufacture of nitrates
FR480285A
(en )
1916-07-12
Process for the production of artificial stones
FR443833A
(en )
1912-10-03
Process for the manufacture of hollow bricks
FR19808E
(en )
1915-10-01
Process for the manufacture of white cement
FR468527A
(en )
1914-07-08
Process for the manufacture of white cement
FR19807E
(en )
1915-10-01
Process for the manufacture of white cement
FR465552A
(en )
1914-04-20
Mold for the manufacture of compressed cement tiles
FR466518A
(en )
1914-05-15
Method and apparatus for the manufacture of cement or hydraulic lime
FR19528E
(en )
1915-02-26
Method and apparatus for the manufacture of cement or hydraulic lime
FR478585A
(en )
1915-12-22
Portland cement manufacturing process
FR461359A
(en )
1913-12-27
Process for the production of lime in pieces
FR457876A
(en )
1913-09-27
Process for the production of lime in pieces
FR520523A
(en )
1921-06-27
Process for the production of yeast