US PATENT SUBCLASS 123 / 57.1
.~.~ Shaft rotates through piston

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

52.1  DF  MULTIPLE CYLINDER {7}
56.1  DF  .~ Having rotary output shaft parallel to cylinders {2}
57.1.~.~ Shaft rotates through piston

DEFINITION

Classification: 123/57.1

Shaft rotates through piston:

(under subclass 56.1) Multiple cylinder engine wherein the rotary output shaft extends through and is rotatable in a longitudinal bore in the piston.