USPC Class Details

Description: 122 liquid heaters and vaporizers / 122 liquid heaters and vaporizers/(135.1) flue (155.1) vertical () circulation tube (159) internal

Hierarchy/Derived subclasses

122 / 135.1-> 155.1-> 159

uspto searches

Patent Apps in 122/159

Granted Patents in 122/159

Use the links above or do an advanced search in ppubs for:
(122/159.ccls.)

This will show what classes derive from the input. Ex: entering 43/42.24 shows the derived classes and the search that can be used to find patents or patent applications in those subclasses.
Display:

Back