CH47075A
(en )
1910-05-16
Machine for the production of concrete hollow bricks
FR474950A
(en )
1915-03-26
Brick making machine
FR405811A
(en )
1910-01-14
Machine for the manufacture of concrete slabs and hollow bricks
FR472847A
(en )
1914-12-18
Machine for the production of hollow ropes
FR368759A
(en )
1906-12-13
Machine for the production of cement tiles
FR401560A
(en )
1909-09-03
Machine for the manufacture of slabs and slabs for masonry
FR406653A
(en )
1910-02-05
Process for the manufacture of disinfectants
CH52232A
(en )
1911-11-01
Tools for the manufacture of hollow concrete blocks
FR475074A
(en )
1915-04-09
Process and molds for the construction of monolithic buildings
FR437746A
(en )
1912-04-29
Process for the production of fluorescent substances
CH52664A
(en )
1911-12-16
Mold for the manufacture of concrete hollow beams
FR388896A
(en )
1908-08-25
Process for the production of dental cements
FR391523A
(en )
1908-11-03
Machine for the simultaneous production of four nails
CH66073A
(en )
1914-08-01
Brick making machine
FR401377A
(en )
1909-08-27
Artificial hollow stone for construction
FR414461A
(en )
1910-09-03
Process for the production of tetramethylenediamine
FR467076A
(en )
1914-06-03
Process for the production of formaldehyde
FR414911A
(en )
1910-09-14
Advanced process for the manufacture of tablets
CH48801A
(en )
1910-12-01
Hollow brick for reinforced floors and process for its manufacture
CH50348A
(en )
1911-05-16
Process for the manufacture of fabrics
FR392778A
(en )
1908-12-04
Process for the construction of skeletons for artistic glazing
FR392734A
(en )
1908-12-03
Process for the manufacture of cement
FR399626A
(en )
1909-07-02
Process for manufacturing dentures
CH53379A
(en )
1912-03-01
Process for the manufacture of reinforced concrete pillars
CH47912A
(en )
1910-08-16
Brick machine