US PATENT SUBCLASS 123 / 52.5
.~.~ Two-stroke cycle

Current as of: June, 1999
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123 /   HD   INTERNAL-COMBUSTION ENGINES

52.1  DF  MULTIPLE CYLINDER {7}
52.2  DF  .~ Simultaneous compression, distinct pistons, restricted communication to a single combustion chamber {2}
52.5.~.~ Two-stroke cycle {1}
52.6  DF  .~.~.~> Multiple crankshafts

DEFINITION

Classification: 123/52.5

Two-stroke cycle:

(under subclass 52.2) Multiple cylinder engine wherein the pistons in the working cylinders operate on a two-stroke cycle.