US PATENT SUBCLASS 60 / 539
.~.~.~ Cam drive of plural masters

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

325  DF  PRESSURE FLUID SOURCE AND MOTOR {47}
533  DF  .~ Pulsator {25}
537  DF  .~.~ Programmed, self-cycled or self-pulsed {7}
539.~.~.~ Cam drive of plural masters

DEFINITION

Classification: 60/539

(under subclass 537) Apparatus in which a plurality of pulsator pumps are operated in a program or cycle by cam means.