US PATENT SUBCLASS 65 / 489
.~.~ Fluid pressure

Current as of: June, 1999
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65 /   HD   GLASS MANUFACTURING

483  DF  FIBER MAKING APPARATUS {21}
484  DF  .~ With measuring, controlling, sensing, timing, inspecting, indicating, or testing means {7}
489.~.~ Fluid pressure

DEFINITION

Classification: 65/489

Fluid pressure:

(under subclass 484) Apparatus having means for measuring, controlling, analyzing, indicating, or testing any change in force per unit area associated with producing the fibers, filaments, or preforms.