Top IPC subclasses
1
|
G01N
|
5
|
Investigating or analysing materials by determining their chemical or physical properties
|
2
|
C30B
|
4
|
single-crystal growthunidirectional solidification of eutectic material or unidirectional demixing o
|
3
|
B64C
|
1
|
aeroplaneshelicopters
|
4
|
C01B
|
1
|
non-metallic elementscompounds thereof
|
5
|
A61N
|
1
|
electrotherapymagnetotherapyradiation therapyultrasound therapy
|