CH57481A
(en )
1913-01-02
Molding box for the production of sand, cement and cinder blocks
CH68446A
(en )
1915-03-16
Molding box for the production of artificial stones
CH61648A
(en )
1913-10-01
Mold for making pottery
CH66966A
(en )
1914-11-02
Process for the production of homogeneous pressed concrete piles
CH71563A
(en )
1916-01-17
Molding box for the production of artificial stones
AT52445B
(en )
1912-02-26
Forming machine for the production of hollow concrete and similar building blocks.
CH65491A
(en )
1914-06-16
Process for the production of hollow stones closed on all sides
CH63782A
(en )
1914-02-16
Device for the production of artificial building blocks
CH36369A
(en )
1906-12-31
Two-part mold for the manufacture of cement pipes
CH36889A
(en )
1907-03-15
Mold for the production of artificial building blocks
CH70399A
(en )
1915-09-16
Core for molds for the production of pipes from cement, concrete and the like
CH66672A
(en )
1914-10-01
Form for the production of concrete workpieces and the like.
CH65872A
(en )
1914-07-16
Process for the production of concrete or reinforced concrete piles
CH54275A
(en )
1912-05-17
Form for the production of curved ceiling stones
CH71161A
(en )
1915-12-01
Process for the production of portland cement
CH50173A
(en )
1911-05-01
Process for the production of artificial stone slabs
CH51068A
(en )
1911-07-17
Process for the production of artificial stone slabs
AT68762B
(en )
1915-05-25
Machine for the production of roof tiles from cement and other suitable mixtures.
CH52365A
(en )
1911-11-16
Building block for the production of hollow masonry
CH74821A
(en )
1917-06-01
Mold frames for the production of artificial stone workpieces
CH56522A
(en )
1912-11-01
Process for the production of artificial building blocks
CH67201A
(en )
1914-11-16
Process for the manufacture of cement asbestos bricks and the like
CH65685A
(en )
1914-07-01
Process for the production of rammed asphalt
CH64415A
(en )
1914-04-01
Formwork device for the production of concrete structures
AT59262B
(en )
1913-05-26
Die setting and line casting machine for the production of mixed sets.