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 (25) rotary to or from reciprocating or oscillating (49) crank and slide (50) slidable connections (e.g., scotch yoke)

Hierarchy/Derived subclasses

74 / 840

-> 25

-> 49

-> 50

uspto searches

Patent Apps in 74/50

Granted Patents in 74/50

Use the links above or do an advanced search in ppubs for:
(74/50.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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