US PATENT SUBCLASS 74 / 40
.~.~ Crank, pitman, lever, and slide

Current as of: June, 1999
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74 /   HD   MACHINE ELEMENT OR MECHANISM

*  DD  MECHANICAL MOVEMENTS {15}
25  DF  .~ Rotary to or from reciprocating or oscillating {20}
40.~.~ Crank, pitman, lever, and slide {1}
41  DF  .~.~.~> Pump jack type

DEFINITION

Classification: 74/40

(under subclass 25) Mechanisms, including a crank, pitman, lever, and slide.

SEE OR SEARCH CLASS

123, Internal-Combustion Engines,

78, for variable clearance, four cycle engines.