US PATENT SUBCLASS 62 / 403
.~.~ Reciprocating element-type motor, e.g., piston

Current as of: June, 1999
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401  DF  AIR COMPRESSOR, COOLER AND EXPANDER TYPE {1}
402  DF  .~ Motor-type expander {1}
403.~.~ Reciprocating element-type motor, e.g., piston

DEFINITION

Classification: 62/403

(under subclass 402) Apparatus in which the motor includes a reciprocating element, e.g., piston.

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6, for a "Stirling" cycle machine.