DK44663C
(en )
1931-10-05
Procedure in the Manufacture of Pavement Materials.
DK41963C
(en )
1930-03-31
Procedure for the Manufacture of Pavement Material.
FR673853A
(en )
1930-01-21
Locker
DK43966C
(en )
1931-04-07
Procedure for the Manufacture of Pavements.
DK43539C
(en )
1930-12-29
Procedure in the manufacture of light-reflecting signs.
ES115629A1
(en )
1929-12-16
Improvements in the manufacture of concrete.
DK46065C
(en )
1932-08-15
Procedure for the manufacture of plastics.
ES110781A1
(en )
1929-02-16
Improvements introduced in the manufacture of espadrilles.
ES112061A1
(en )
1929-06-16
Improvements in the methods of manufacturing titanium compounds.
ES112062A1
(en )
1929-06-16
Improvements in the methods of manufacturing titanium compounds.
DK47248C
(en )
1933-04-24
Machine for Use in the Manufacture of Brake Drums.
DK46211C
(en )
1932-09-19
Procedure for the Manufacture of Road Construction Materials.
DK41888C
(en )
1930-03-24
Procedure for Improving the Dispersibility of Nitrophosphates.
DK42950C
(en )
1930-09-15
Procedure for the production of bituminous paper.
ES114883A1
(en )
1930-01-01
Improvements in the manufacture of iron planks.
FI12405A
(en )
1929-04-05
Shredder
ES114132A1
(en )
1929-08-16
Improvements in Siemens-Martin ovens.
DK44638C
(en )
1931-09-28
Procedure for the manufacture of a road construction material.
ES111582A1
(en )
1929-05-01
Improvements in the elements of pipes.
DK44876C
(en )
1931-11-23
Procedure for the manufacture of a material for construction and decoration purposes.
FR702090A
(en )
1931-03-28
Coating materials
DK45235C
(en )
1932-02-15
Procedure for Manufacturing Bricks.
ES116036A1
(en )
1930-03-16
Concrete blocks
ES116137A1
(en )
1930-01-16
IMPROVEMENTS IN THE ARCHITECTURAL STRUCTURES.
ES115754A1
(en )
1929-12-16
Procedure for the manufacture of curling forks.