Top IPC subclasses
1
|
G01B
|
8
|
measuring length, thickness, or similar linear dimensionsmeasuring anglesmeasuring areasmeasuring ir
|
2
|
C22C
|
2
|
alloys
|
3
|
F03D
|
2
|
Wind motors
|
4
|
G03G
|
1
|
Electrography; electrophotography; magnetography
|
5
|
G08B
|
1
|
signalling or calling systemsorder telegraphsalarm systems
|
6
|
G01L
|
1
|
measuring force, stress, torque, work, mechanical power, mechanical efficiency, or fluid pressure
|
7
|
H01B
|
1
|
cablesconductorsinsulatorsselection of materials for their conductive, insulating, or dielectric pro
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