US PATENT SUBCLASS 384 / 133
.~.~.~.~ Magnetic fluid

Current as of: June, 1999
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384 /   HD   BEARINGS

91  DF  ROTARY BEARING {8}
129  DF  .~ Plain bearing {17}
130  DF  .~.~ With specified seal {12}
132  DF  .~.~.~ Fluid barrier {2}
133.~.~.~.~ Magnetic fluid

DEFINITION

Classification: 384/133

Magnetic fluid:

(under subclass 132) Subject matter wherein the sealing barrier is a liquid which contains magnetic properties.