FR617921A
(en )
1927-02-28
Retro-viewfinder for automobiles and the like
GR1214B
(en )
1926-06-24
METHOD AND ADVANCE FOR THE CONSTRUCTION OF ELASTIC BODIES MADE OF PLASTIC MATERIAL AS MORTAR AND THE LIKE.
SU23934A1
(en )
1931-10-31
The method of producing a surrogate rubber
ES97233A1
(en )
1926-05-01
Improvements in the manufacture of concrete and similar materials.
ES97289A1
(en )
1926-05-16
Improvements in the manufacture of concrete and similar materials.
GR1231B
(en )
1926-07-08
IMPROVEMENTS IN TYPES OF TILES AND BRICKS.
GR1374B
(en )
1926-12-30
METHOD FOR THE MANUFACTURE OF PERPOSE BUILDING MATERIALS.
FR626903A
(en )
1927-09-22
Lead columns or pipes and the like
GR1786B
(en )
1928-03-30
BUILDING MATERIAL AND HOW TO BUILD IT.
GR2018B
(en )
1928-10-17
PERFECTIONS IN OR IN RELATION TO THE PRODUCTION OF CONCRETE OR CELLULAR CONCRETE AND SIMILAR MATERIAL.
GR1294B
(en )
1926-10-04
MANUFACTURE OF CEMENT AND LIME HYDRAULICS THROUGH THEME.
FR633435A
(en )
1928-01-28
Building material
GR1492B
(en )
1927-05-04
CONSTRUCTION METHOD AND THIS BUILDING MATERIAL.
GR2579B
(en )
1929-12-20
METHOD AND INSTALLATION FOR GRASTING CEMENT AND SIMILAR SUBSTANCES.
GR1397B
(en )
1927-01-11
METHOD OF CONSERVATION OF WOOD AND SIMILAR.
DK37843C
(en )
1927-08-22
Cement stone press.
ES98237A1
(en )
1926-08-01
Improvements in the manufacture of tiles and cement plates or similar.
GR1174B
(en )
1926-04-27
APPARATUS FOR THE PRODUCTION OF THE SOUL AND ICE.
DK38514C
(en )
1928-03-05
Conveyor for sacks and the like.
GR1838B
(en )
1928-05-17
MATERIAL REPLACEMENT OF CEMENT, IRON AND WOOD.
ES110292A1
(en )
1929-04-01
Procedure and device for the manufacture of concrete drilling piles.
ES101492A1
(en )
1927-05-01
Apparatus and material for its manufacture.
FR628139A
(en )
1927-10-19
Tanning materials
FR640224A
(en )
1928-07-09
New tanning materials
GR938B
(en )
1925-06-10
BUILDING MILK AND THE VARIOUS WAYS OF USING IT.