US PATENT SUBCLASS 60 / 373
.~.~ Progressive change of stroke length in successive strokes

Current as of: June, 1999
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60 /   HD   POWER PLANTS

325  DF  PRESSURE FLUID SOURCE AND MOTOR {47}
369  DF  .~ Cyclically operable reciprocating or oscillating motor or output stroke device {11}
373.~.~ Progressive change of stroke length in successive strokes

DEFINITION

Classification: 60/373

(under subclass 369) Apparatus having means controlling a pump and/or a motor means whereby the stroke of a motor working member is caused to change in length from one stroke to another.