CH72461A
(en )
1916-05-16
Hollow bodies for the production of reinforced concrete ceilings
CH56769A
(en )
1912-11-16
Reinforced concrete beams for making ceilings
CH60699A
(en )
1913-08-01
Ceiling block for the production of reinforced concrete solid ceilings
CH66062A
(en )
1914-08-01
Hollow stone for the production of hollow body slabs
CH52365A
(en )
1911-11-16
Building block for the production of hollow masonry
CH63287A
(en )
1914-01-16
Hollow cement stone
CH65872A
(en )
1914-07-16
Process for the production of concrete or reinforced concrete piles
CH76518A
(en )
1918-01-02
Formwork construction for the production of monolithic concrete buildings
CH76517A
(en )
1918-01-02
Formwork construction for the production of monolithic concrete buildings
CH76516A
(en )
1918-01-02
Formwork construction for the production of monolithic concrete buildings
CH63952A
(en )
1914-03-02
Process for the production of hollow ceilings from concrete or reinforced concrete, with attached plaster ceiling
CH64415A
(en )
1914-04-01
Formwork device for the production of concrete structures
CH67851A
(en )
1915-01-16
Process for the production of marble-like artificial stone slabs
CH72600A
(en )
1916-06-02
Driving pipe for the production of concrete piles
CH71161A
(en )
1915-12-01
Process for the production of portland cement
AT52445B
(en )
1912-02-26
Forming machine for the production of hollow concrete and similar building blocks.
CH67854A
(en )
1915-04-01
Process for the manufacture of concrete piles
CH66659A
(en )
1914-10-01
Reinforced concrete hollow ceiling
CH77847A
(en )
1918-06-01
Process for the production of polygonal reinforced concrete hollow masts
CH71767A
(en )
1916-02-16
Hollow stone concrete ceiling
CH70567A
(en )
1915-10-01
Hollow stone concrete ceiling
DK16478C
(en )
1912-09-30
Procedure for the production of granite or similar stone mortar.
CH60445A
(en )
1913-07-16
Reinforced concrete ceiling with hollow stones
CH72147A
(en )
1916-08-16
Reinforced concrete ceiling with hollow stones
CH39693A
(en )
1908-04-01
Shaped stone for the production of reinforced ceilings