CH21993A
(en )
1901-10-31
Stone sorting mill for clay and loam
CH20007A
(en )
1900-10-31
Vertical clay cutter
DK3710C
(en )
1901-02-18
Stone separation rolling mill for Clay.
CH24467A
(en )
1902-12-31
Cutting tool for milling wood and other materials
AT26069B
(en )
1906-10-25
Rolling mill for processing clay and similar raw materials.
CH20149A
(en )
1900-12-15
Grinding machine for products in the clay and cement industry
CH23165A
(en )
1902-06-15
Paving slab
CH22328A
(en )
1902-01-15
kiln
CH21528A
(en )
1901-07-31
Refractory block made of crushed magnesia silicate rock
CH22539A
(en )
1902-02-15
New tool for processing metals
CH17839A
(en )
1899-11-15
Gravel and sand sorting machine
ES25362A2
(en )
1900-02-15
Improvements in the procedure for the manufacture of calcareous stoneware.
CH22103A
(en )
1902-01-15
Vertically movable and reversible blackboard
CH20838A
(en )
1901-04-15
Roof tiles
GB190021059A
(en )
1900-12-22
Improvements in Slabs or Plates for Asphalte and similar Pavements
GB190018600A
(en )
1901-10-18
Pneumatic Drop Hammer
CH23152A
(en )
1902-06-15
Receiver for photophone and photophonograph
CH19094A
(en )
1900-04-30
Hydraulic ram
GB190021496A
(en )
1901-09-28
Improvements in the Manufacture of Refractory Materials
CH20195A
(en )
1900-12-15
blowtorch
CH23769A
(en )
1902-09-15
Rolling mill
DK3103C
(en )
1900-05-28
Machine for making roof tiles of cement and the like.
CH19353A
(en )
1900-06-30
Timetable blocks tableau
CH23650A
(en )
1902-08-31
Shaft furnace for calcining and melting and for the extraction of by-products
CA64541A
(en )
1899-10-25
Calcium carbide blocks and their manufacture