Utility
Subclass Subgroup Patent
A61K 38/4893 09808515
F16L 11/127 09810350
G06K 19/07722 09811774
G06Q 20/327 09811821
G09B 7/02 09812026
H01L 27/0711 09812445
H04L 41/00 09813285
H04N 7/08 09813664