US PATENT SUBCLASS 292 / 309
.~.~ Reinforced

Current as of: June, 1999
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292 /   HD   CLOSURE FASTENERS

307 R  DF  SEALS {14}
308  DF  .~ Compressible disk {3}
309.~.~ Reinforced

DEFINITION

Classification: 292/309

(under subclass 308) Devices having reinforcing means embedded in the disks.