US PATENT SUBCLASS 248 / 632
.~.~ Nonmetallic resilient element

Current as of: June, 1999
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248 /   HD   SUPPORTS

560  DF  RESILIENT SUPPORT {16}
618  DF  .~ Including spring zone understructure {9}
632.~.~ Nonmetallic resilient element {1}
633  DF  .~.~.~> Mat or pad

DEFINITION

Classification: 248/632

Nonmetallic resilient element:

(under subclass 618) Structure comprising a resilient element of nonmetallic material.