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Class Information
Number: 74/71
Name: Machine element or mechanism > Mechanical movements > Rotary to alternating rotary > Mangle connections
Description: Mechanisms, in which the motion is changed by means of a mangle and gearing and the driving member is the shiftable member.

Sub-classes under this class:

Class Number Class Name Patents
74/74 Multilated gearing connections 7
74/72 Shiftable driven gear 2

Patents under this class:

Patent Number Title Of Patent Date Issued
5230607 Method and apparatus for controlling the operation of a pumpjack Jul. 27, 1993
4638676 Reciprocating drive mechanism with positive pinion-to-rack gear engagement Jan. 27, 1987

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