USPC Class Details

Description: 74 machine element or mechanism / 74 machine element or mechanism/(840) rotary driven device adjustable during operation relative to its supporting structure (63) rotary to rotary (64) inertia or centrifugal transmitters

Hierarchy/Derived subclasses

74 / 840

-> 63

-> 64

uspto searches

Patent Apps in 74/64

Granted Patents in 74/64

Use the links above or do an advanced search in ppubs for:
(74/64.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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