Description: 355 / (3) Electron Beam Or Cathode Ray Tube Circuits (13) Deflection (22) Periodic (e.g., Repetitive)

Hierarchy/Derived subclasses

355 / 3

-> 13

-> 22

-> 23

CIPO searches

search just 355/22

- or -

search hierarchy!

The "search hierarchy!" link will execute this search:
((355/22 <IN> CPC) <OR> (355/23 <IN> CPC))

This will show what classes derive from the input. Ex: entering 78/35 shows the derived classes and the search that can be used to find patents in those subclasses.

Display:

Back