FR660133A
(en )
1929-07-13
Process for the production of hydrocarbons
FR550542A
(en )
1923-03-12
Process for the production of a road construction material similar to compressed asphalt
FR655853A
(en )
1929-04-24
Process for the preparation of a material for road surfacing
FR37895E
(en )
1931-02-04
Process for the preparation of a material for road surfacing
FR536892A
(en )
1922-05-11
Process for the production of a building material
FR640398A
(en )
1928-07-11
Process for preparing bituminous material for road construction
FR717109A
(en )
1932-01-04
Process for the manufacture of a material giving the advantages of compressed asphalt
FR727328A
(en )
1932-06-16
Process for the production of a bituminous dispersion for road construction and similar applications
FR487833A
(en )
1918-07-30
Process for the production of a material for lining the road surface
FR475709A
(en )
1915-06-10
Process to retain road dust
FR698818A
(en )
1931-02-05
Process for the production of a material used for covering bituminous road surfaces by impregnating chippings or gravel with bituminous materials
FR544281A
(en )
1922-09-19
Process for the production of devitrified stony material
FR808366A
(en )
1937-02-04
Process for preparing a material for road surfacing
FR763813A
(en )
1934-05-07
Process for the production and placement of bituminous material for road surfacing
FR583088A
(en )
1925-01-06
Process for the production of woolen cylinders for woolen machines
FR663163A
(en )
1929-08-17
Process for the production of a synthetic wax
FR607481A
(en )
1926-07-02
A method of making a material particularly suitable for establishing roads
FR701730A
(en )
1931-03-21
A method of making a material particularly suitable for establishing roads
FR457489A
(en )
1913-09-18
Improvements made to the establishment of gaiters used to reinforce the casings of pneumatic tires
FR728481A
(en )
1932-07-06
Process for manufacturing products for road construction and maintenance from mixtures of coal tar and bitumen
FR728480A
(en )
1932-07-06
Process for manufacturing products for road construction and maintenance from mixtures of coal tar and bitumen
FR666015A
(en )
1929-09-26
Process for the production of an insulating material by means of strips of fibrous material
FR621008A
(en )
1927-05-04
Special molds adapted to a brick making machine
FR720808A
(en )
1932-02-24
Process for the formation of joints in concrete roads
FR621550A
(en )
1927-05-12
Process for the production of hydrocarbons