USPC Class Details

Description: 74 machine element or mechanism / 74 machine element or mechanism/(828) alternating-motion driven device with means during operation to adjust stroke (829) constant length stroke with means to displace end limits

Hierarchy/Derived subclasses

74 / 828

-> 829

-> 830

uspto searches

Patent Apps in 74/829

Granted Patents in 74/829

Use the links above or do an advanced search in ppubs for:
(74/829.ccls. or 74/830.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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