CH66062A
(en )
1914-08-01
Hollow stone for the production of hollow body slabs
CH65683A
(en )
1914-07-01
Machine for the production of patterned artificial stone tiles
CH65491A
(en )
1914-06-16
Process for the production of hollow stones closed on all sides
CH72151A
(en )
1916-04-01
Forming machine for the production of hollow stones
CH68621A
(en )
1915-04-01
Machine for the production of hollow stones
CH68126A
(en )
1915-02-16
Shaped stone for the production of reinforced hollow concrete ceilings
CH68446A
(en )
1915-03-16
Molding box for the production of artificial stones
CH63782A
(en )
1914-02-16
Device for the production of artificial building blocks
CH54275A
(en )
1912-05-17
Form for the production of curved ceiling stones
CH63287A
(en )
1914-01-16
Hollow cement stone
CH66966A
(en )
1914-11-02
Process for the production of homogeneous pressed concrete piles
CH51068A
(en )
1911-07-17
Process for the production of artificial stone slabs
CH50173A
(en )
1911-05-01
Process for the production of artificial stone slabs
CH66672A
(en )
1914-10-01
Form for the production of concrete workpieces and the like.
CH52365A
(en )
1911-11-16
Building block for the production of hollow masonry
CH65479A
(en )
1914-06-16
Stone sleeve and method of making the same
AT70872B
(en )
1916-01-10
Process for the production of artificial marble.
CH55494A
(en )
1912-09-02
Hollow bodies for the production of ceilings
CH66072A
(en )
1914-08-01
Mold for the mass production of alluvial stones
CH67851A
(en )
1915-01-16
Process for the production of marble-like artificial stone slabs
CH74821A
(en )
1917-06-01
Mold frames for the production of artificial stone workpieces
CH64415A
(en )
1914-04-01
Formwork device for the production of concrete structures
AT74183B
(en )
1918-02-25
Process for the production of artificial stone.
CH65872A
(en )
1914-07-16
Process for the production of concrete or reinforced concrete piles
CH69677A
(en )
1915-07-16
Machine for the production of Tresterstöckli