Top IPC subclasses
1
|
C04B
|
3
|
Lime; magnesia; slag; cements; compositions thereof, e.g. mortars, concrete or like building materials; artificial stone; ceramics; refractories; treatment of natural stone
|
2
|
B01F
|
1
|
mixing, e.g. dissolving, emulsifying, dispersing
|
3
|
B28C
|
1
|
preparing clayproducing mixtures containing clay or cementitious material, e.g. plaster
|