US PATENT SUBCLASS 123 / *
.~ Rear compression

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

65 R  DF  TWO-CYCLE {24}
*.~ Rear compression {2}
73 R  DF  .~.~> Crankcase {17}
74 R  DF  .~.~> Cylinder {7}