US PATENT SUBCLASS 160 / 16
.~ Conical, prismatic or other protuberances

Current as of: June, 1999
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160 /   HD   FLEXIBLE OR PORTABLE CLOSURE, PARTITION, OR PANEL

12  DF  WITH INSECT EXITS {5}
16.~ Conical, prismatic or other protuberances

DEFINITION

Classification: 160/16

(under subclass 12) Combinations in which the exit passage structure is of conical or prismatic form or is at the apex of a protuberance.

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14, for such exit structure with a zigzag surface formation.