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 (70) rotary to alternating rotary (79) oscillating rack connections (81) crank and pitman actuator

Hierarchy/Derived subclasses

74 / 840

-> 70

-> 79

-> 81

uspto searches

Patent Apps in 74/81

Granted Patents in 74/81

Use the links above or do an advanced search in ppubs for:
(74/81.ccls.)

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