USPC Class Details

Description: 454 ventilation / 454 ventilation/(69) vehicle (e.g., automobile, etc.) (83) railcar, bus, or trailer (103) having both inlet and outlet airways (105) with air pump (106) wind or wheel-axle operated

Hierarchy/Derived subclasses

454 / 69-> 83-> 103-> 105-> 106

uspto searches

Patent Apps in 454/106

Granted Patents in 454/106

Use the links above or do an advanced search in ppubs for:
(454/106.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.
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