GR24B
(en )
1921-02-22
MANUFACTURE OF LIMESTONE BUILDING BUILDINGS OF EXHERRAL LAND.
GR25B
(en )
1921-02-22
CONSTRUCTION OF LIMESTONE BUILDINGS.
GR783B
(en )
1924-12-16
NEW METHOD OF CONSTRUCTION OF BUILDING TILES.
DK31823C
(en )
1923-06-11
Building stone.
FR512333A
(en )
1921-01-20
Construction of mold-tile buildings
AT87460B
(en )
1922-02-25
Building.
DK31081C
(en )
1923-01-08
Building wall.
GR104B
(en )
1921-07-19
SYSTEM OF WOVEN MASONRY.
FR539906A
(en )
1922-07-03
Building construction method
ES77867A1
(en )
1921-06-16
A procedure for the manufacture of parts for the formation of roofs or roofs and building elements.
DK28101C
(en )
1921-08-01
Building stone.
DK29104C
(en )
1922-01-02
Building stone.
AT90726B
(en )
1923-01-10
Building block.
DK33431C
(en )
1924-07-07
Method of Making Cement.
FR582217A
(en )
1924-12-15
Building material
DK30524C
(en )
1922-10-30
Corner building block.
FR603656A
(en )
1926-04-21
Construction of buildings
FR544815A
(en )
1922-09-30
Type of perforated tile
FR515153A
(en )
1921-03-25
Building construction
AU327321A
(en )
1922-12-12
Improvements inthe manufacture of concrete buildings
GR241B
(en )
1922-01-22
PERFECTIONS REDUCED TO BUILDING CONSTRUCTION.
CA213569A
(en )
1921-09-27
Building construction
CA209589A
(en )
1921-03-22
Building construction
FR560133A
(en )
1923-09-28
Ceiling sub-roof
CA211494A
(en )
1921-05-17
Concrete building