US PATENT SUBCLASS 65 / 497
.~.~ Noncircular tip opening (e.g., elliptical, polygonal, etc.)

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

483  DF  FIBER MAKING APPARATUS {21}
495  DF  .~ With specified bushing, tip, or feeder structure {4}
497.~.~ Noncircular tip opening (e.g., elliptical, polygonal, etc.)

DEFINITION

Classification: 65/497

Noncircular tip opening (e.g., elliptical, polygonal, etc.):

(under subclass 495) Apparatus wherein the bushing tip opening is not circular.

(1) Note. Elliptical, square, and polygonal configured bushing openings are found in this subclass.